/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:49:34,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:49:34,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:49:34,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:49:34,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:49:34,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:49:34,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:49:34,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:49:34,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:49:34,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:49:34,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:49:34,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:49:34,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:49:34,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:49:34,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:49:34,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:49:34,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:49:34,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:49:34,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:49:34,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:49:34,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:49:34,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:49:34,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:49:34,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:49:34,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-16 15:49:34,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 15:49:34,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 15:49:34,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 15:49:34,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 15:49:34,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 15:49:34,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 15:49:34,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 15:49:34,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 15:49:34,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:49:34,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:49:34,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:49:34,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-06-16 15:49:34,931 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:49:34,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:49:34,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:49:34,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:49:34,933 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:49:34,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:49:34,933 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:49:34,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:49:34,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:49:34,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:49:34,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:49:34,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:49:34,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:49:34,934 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:49:34,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:49:34,934 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:49:34,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:49:34,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:49:34,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:49:34,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:49:34,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:49:34,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:49:34,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:49:34,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:49:34,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:49:34,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:49:34,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:49:34,936 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:49:34,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:49:34,936 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:49:34,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:49:35,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:49:35,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:49:35,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:49:35,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:49:35,264 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:49:35,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-06-16 15:49:35,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a584caa36/a15105c0776442f59d41893f9cf91f48/FLAG16f1c05ac [2021-06-16 15:49:35,847 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:49:35,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-06-16 15:49:35,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a584caa36/a15105c0776442f59d41893f9cf91f48/FLAG16f1c05ac [2021-06-16 15:49:36,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a584caa36/a15105c0776442f59d41893f9cf91f48 [2021-06-16 15:49:36,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:49:36,298 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:49:36,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:49:36,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:49:36,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:49:36,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e86692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36, skipping insertion in model container [2021-06-16 15:49:36,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:49:36,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:49:36,479 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-06-16 15:49:36,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:49:36,654 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:49:36,670 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-06-16 15:49:36,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:49:36,753 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:49:36,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36 WrapperNode [2021-06-16 15:49:36,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:49:36,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:49:36,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:49:36,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:49:36,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:49:36,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:49:36,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:49:36,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:49:36,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... [2021-06-16 15:49:36,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:49:36,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:49:36,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:49:36,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:49:36,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:49:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:49:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:49:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:49:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:49:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:49:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:49:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:49:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:49:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-16 15:49:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-16 15:49:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-16 15:49:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-16 15:49:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:49:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:49:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:49:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:49:36,889 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 15:49:37,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:49:37,377 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:49:37,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:49:37 BoogieIcfgContainer [2021-06-16 15:49:37,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:49:37,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:49:37,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:49:37,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:49:37,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:49:36" (1/3) ... [2021-06-16 15:49:37,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c60c900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:49:37, skipping insertion in model container [2021-06-16 15:49:37,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:49:36" (2/3) ... [2021-06-16 15:49:37,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c60c900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:49:37, skipping insertion in model container [2021-06-16 15:49:37,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:49:37" (3/3) ... [2021-06-16 15:49:37,389 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-06-16 15:49:37,397 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:49:37,397 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:49:37,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:49:37,398 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:49:37,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,447 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,447 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,448 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,448 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,448 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,448 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,449 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,450 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,450 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,450 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,452 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,452 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,452 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,452 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,452 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,453 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,453 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,453 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,454 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,454 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,454 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,455 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,455 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,455 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,455 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,456 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,456 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,457 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,457 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,457 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,459 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,459 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,460 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,460 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,464 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,469 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:49:37,475 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:49:37,495 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-16 15:49:37,526 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:49:37,526 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:49:37,526 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:49:37,526 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:49:37,526 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:49:37,527 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:49:37,527 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:49:37,527 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:49:44,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 51816 states, 43284 states have (on average 2.459546252656871) internal successors, (106459), 51815 states have internal predecessors, (106459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-16 15:49:44,281 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:44,282 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:44,282 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:44,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:44,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1244979450, now seen corresponding path program 1 times [2021-06-16 15:49:44,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:44,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334607732] [2021-06-16 15:49:44,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:44,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:44,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:44,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:44,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:44,737 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:49:44,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:49:44,751 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:44,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:44,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:44,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:44,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:44,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:44,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:44,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:44,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:44,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334607732] [2021-06-16 15:49:44,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334607732] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:44,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:44,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:44,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184657614] [2021-06-16 15:49:44,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:44,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:44,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:44,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:44,886 INFO L87 Difference]: Start difference. First operand has 51816 states, 43284 states have (on average 2.459546252656871) internal successors, (106459), 51815 states have internal predecessors, (106459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.142857142857142) 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) [2021-06-16 15:49:45,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:45,933 INFO L93 Difference]: Finished difference Result 69204 states and 144753 transitions. [2021-06-16 15:49:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:49:45,935 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 [2021-06-16 15:49:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:46,077 INFO L225 Difference]: With dead ends: 69204 [2021-06-16 15:49:46,078 INFO L226 Difference]: Without dead ends: 12186 [2021-06-16 15:49:46,079 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 140.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-16 15:49:46,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12186 states. [2021-06-16 15:49:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12186 to 12186. [2021-06-16 15:49:46,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12186 states, 11976 states have (on average 2.474699398797595) internal successors, (29637), 12185 states have internal predecessors, (29637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:46,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12186 states to 12186 states and 29637 transitions. [2021-06-16 15:49:46,654 INFO L78 Accepts]: Start accepts. Automaton has 12186 states and 29637 transitions. Word has length 57 [2021-06-16 15:49:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:46,656 INFO L482 AbstractCegarLoop]: Abstraction has 12186 states and 29637 transitions. [2021-06-16 15:49:46,656 INFO L483 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) [2021-06-16 15:49:46,656 INFO L276 IsEmpty]: Start isEmpty. Operand 12186 states and 29637 transitions. [2021-06-16 15:49:46,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-16 15:49:46,668 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:46,668 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:46,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:49:46,669 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:46,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:46,670 INFO L82 PathProgramCache]: Analyzing trace with hash 620800295, now seen corresponding path program 1 times [2021-06-16 15:49:46,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:46,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164877622] [2021-06-16 15:49:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:46,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:46,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:46,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:46,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:46,753 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:49:46,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:49:46,766 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:46,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:46,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:46,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:46,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:46,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:46,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:46,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:46,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:46,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:46,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164877622] [2021-06-16 15:49:46,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164877622] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:46,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:46,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:46,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539955720] [2021-06-16 15:49:46,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:46,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:46,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:46,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:46,818 INFO L87 Difference]: Start difference. First operand 12186 states and 29637 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:47,478 INFO L93 Difference]: Finished difference Result 16678 states and 41937 transitions. [2021-06-16 15:49:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 15:49:47,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-16 15:49:47,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:47,542 INFO L225 Difference]: With dead ends: 16678 [2021-06-16 15:49:47,542 INFO L226 Difference]: Without dead ends: 12586 [2021-06-16 15:49:47,543 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 305.0ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-16 15:49:47,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12586 states. [2021-06-16 15:49:47,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12586 to 12586. [2021-06-16 15:49:47,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12586 states, 12380 states have (on average 2.449919224555735) internal successors, (30330), 12585 states have internal predecessors, (30330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12586 states to 12586 states and 30330 transitions. [2021-06-16 15:49:47,942 INFO L78 Accepts]: Start accepts. Automaton has 12586 states and 30330 transitions. Word has length 59 [2021-06-16 15:49:47,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:47,942 INFO L482 AbstractCegarLoop]: Abstraction has 12586 states and 30330 transitions. [2021-06-16 15:49:47,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:47,943 INFO L276 IsEmpty]: Start isEmpty. Operand 12586 states and 30330 transitions. [2021-06-16 15:49:47,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 15:49:47,958 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:47,958 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:47,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:49:47,958 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:47,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:47,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1235779206, now seen corresponding path program 1 times [2021-06-16 15:49:47,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:47,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190797681] [2021-06-16 15:49:47,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:48,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,044 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:49:48,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:49:48,062 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:48,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:48,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:48,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190797681] [2021-06-16 15:49:48,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190797681] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:48,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:48,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:48,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107660615] [2021-06-16 15:49:48,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:48,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:48,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:48,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:48,244 INFO L87 Difference]: Start difference. First operand 12586 states and 30330 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:48,431 INFO L93 Difference]: Finished difference Result 14266 states and 35538 transitions. [2021-06-16 15:49:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:49:48,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-16 15:49:48,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:48,467 INFO L225 Difference]: With dead ends: 14266 [2021-06-16 15:49:48,467 INFO L226 Difference]: Without dead ends: 10020 [2021-06-16 15:49:48,467 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 248.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-16 15:49:48,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10020 states. [2021-06-16 15:49:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10020 to 9936. [2021-06-16 15:49:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9936 states, 9786 states have (on average 2.4966278356836296) internal successors, (24432), 9935 states have internal predecessors, (24432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9936 states to 9936 states and 24432 transitions. [2021-06-16 15:49:48,755 INFO L78 Accepts]: Start accepts. Automaton has 9936 states and 24432 transitions. Word has length 60 [2021-06-16 15:49:48,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:48,755 INFO L482 AbstractCegarLoop]: Abstraction has 9936 states and 24432 transitions. [2021-06-16 15:49:48,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 9936 states and 24432 transitions. [2021-06-16 15:49:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-16 15:49:48,769 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:48,769 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:48,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:49:48,769 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:48,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:48,770 INFO L82 PathProgramCache]: Analyzing trace with hash -2116675419, now seen corresponding path program 1 times [2021-06-16 15:49:48,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:48,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856045744] [2021-06-16 15:49:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:48,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:48,829 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:49:48,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:49:48,855 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:48,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:48,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:48,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:48,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:48,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:48,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856045744] [2021-06-16 15:49:48,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856045744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:48,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:48,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:49:48,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942229994] [2021-06-16 15:49:48,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:49:48,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:48,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:49:48,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:49:48,903 INFO L87 Difference]: Start difference. First operand 9936 states and 24432 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:49,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:49,218 INFO L93 Difference]: Finished difference Result 12486 states and 32688 transitions. [2021-06-16 15:49:49,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:49:49,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-16 15:49:49,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:49,235 INFO L225 Difference]: With dead ends: 12486 [2021-06-16 15:49:49,236 INFO L226 Difference]: Without dead ends: 4871 [2021-06-16 15:49:49,237 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 169.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:49:49,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2021-06-16 15:49:49,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 4871. [2021-06-16 15:49:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4871 states, 4721 states have (on average 2.8932429570006355) internal successors, (13659), 4870 states have internal predecessors, (13659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4871 states to 4871 states and 13659 transitions. [2021-06-16 15:49:49,352 INFO L78 Accepts]: Start accepts. Automaton has 4871 states and 13659 transitions. Word has length 62 [2021-06-16 15:49:49,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:49,353 INFO L482 AbstractCegarLoop]: Abstraction has 4871 states and 13659 transitions. [2021-06-16 15:49:49,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4871 states and 13659 transitions. [2021-06-16 15:49:49,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-16 15:49:49,360 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:49,361 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:49,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:49:49,364 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:49,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1607734965, now seen corresponding path program 1 times [2021-06-16 15:49:49,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:49,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116070464] [2021-06-16 15:49:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:49,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:49,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:49,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:49,447 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:49,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:49,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:49,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:49,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:49,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:49,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:49,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116070464] [2021-06-16 15:49:49,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116070464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:49,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:49,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:49,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948770786] [2021-06-16 15:49:49,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:49,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:49,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:49,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:49,487 INFO L87 Difference]: Start difference. First operand 4871 states and 13659 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:49,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:49,658 INFO L93 Difference]: Finished difference Result 6991 states and 20360 transitions. [2021-06-16 15:49:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:49:49,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-16 15:49:49,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:49,670 INFO L225 Difference]: With dead ends: 6991 [2021-06-16 15:49:49,671 INFO L226 Difference]: Without dead ends: 3353 [2021-06-16 15:49:49,671 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:49:49,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3353 states. [2021-06-16 15:49:49,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 3353. [2021-06-16 15:49:49,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3353 states, 3253 states have (on average 2.987088841069782) internal successors, (9717), 3352 states have internal predecessors, (9717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:49,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3353 states to 3353 states and 9717 transitions. [2021-06-16 15:49:49,749 INFO L78 Accepts]: Start accepts. Automaton has 3353 states and 9717 transitions. Word has length 63 [2021-06-16 15:49:49,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:49,750 INFO L482 AbstractCegarLoop]: Abstraction has 3353 states and 9717 transitions. [2021-06-16 15:49:49,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:49,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3353 states and 9717 transitions. [2021-06-16 15:49:49,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-16 15:49:49,757 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:49,757 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:49,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:49:49,757 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:49,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:49,760 INFO L82 PathProgramCache]: Analyzing trace with hash -478921418, now seen corresponding path program 1 times [2021-06-16 15:49:49,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:49,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817381149] [2021-06-16 15:49:49,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:49,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:49,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:49,844 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:49:49,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:49:49,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:49:49,872 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:49:49,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:49,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:49,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:49,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:49,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817381149] [2021-06-16 15:49:49,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817381149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:49,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:49,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:49:49,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823851912] [2021-06-16 15:49:49,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:49:49,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:49,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:49:49,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:49:49,887 INFO L87 Difference]: Start difference. First operand 3353 states and 9717 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:50,016 INFO L93 Difference]: Finished difference Result 4429 states and 12711 transitions. [2021-06-16 15:49:50,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:49:50,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-16 15:49:50,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:50,027 INFO L225 Difference]: With dead ends: 4429 [2021-06-16 15:49:50,027 INFO L226 Difference]: Without dead ends: 3229 [2021-06-16 15:49:50,028 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 90.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:49:50,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2021-06-16 15:49:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3229. [2021-06-16 15:49:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3129 states have (on average 3.0003195909236178) internal successors, (9388), 3228 states have internal predecessors, (9388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 9388 transitions. [2021-06-16 15:49:50,172 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 9388 transitions. Word has length 65 [2021-06-16 15:49:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:50,172 INFO L482 AbstractCegarLoop]: Abstraction has 3229 states and 9388 transitions. [2021-06-16 15:49:50,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 9388 transitions. [2021-06-16 15:49:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-16 15:49:50,179 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:50,180 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:50,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-16 15:49:50,180 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:50,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:50,180 INFO L82 PathProgramCache]: Analyzing trace with hash 86858372, now seen corresponding path program 1 times [2021-06-16 15:49:50,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:50,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393750018] [2021-06-16 15:49:50,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:50,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:50,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:50,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:50,234 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:49:50,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:49:50,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:49:50,264 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:49:50,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:50,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:50,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:50,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:50,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393750018] [2021-06-16 15:49:50,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393750018] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:50,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:50,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:50,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008768122] [2021-06-16 15:49:50,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:50,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:50,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:50,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:50,279 INFO L87 Difference]: Start difference. First operand 3229 states and 9388 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:50,439 INFO L93 Difference]: Finished difference Result 3793 states and 10818 transitions. [2021-06-16 15:49:50,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:49:50,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-16 15:49:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:50,449 INFO L225 Difference]: With dead ends: 3793 [2021-06-16 15:49:50,449 INFO L226 Difference]: Without dead ends: 2669 [2021-06-16 15:49:50,450 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 113.4ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-16 15:49:50,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2021-06-16 15:49:50,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2669. [2021-06-16 15:49:50,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2573 states have (on average 2.9681305868635834) internal successors, (7637), 2668 states have internal predecessors, (7637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 7637 transitions. [2021-06-16 15:49:50,517 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 7637 transitions. Word has length 66 [2021-06-16 15:49:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:50,518 INFO L482 AbstractCegarLoop]: Abstraction has 2669 states and 7637 transitions. [2021-06-16 15:49:50,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 7637 transitions. [2021-06-16 15:49:50,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-16 15:49:50,523 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:50,523 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:50,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-16 15:49:50,524 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:50,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:50,524 INFO L82 PathProgramCache]: Analyzing trace with hash -959636557, now seen corresponding path program 1 times [2021-06-16 15:49:50,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:50,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025333373] [2021-06-16 15:49:50,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:50,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:50,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:50,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:50,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:50,610 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:49:50,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:49:50,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:49:50,639 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:49:50,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:50,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:50,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:50,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025333373] [2021-06-16 15:49:50,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025333373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:50,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:50,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:49:50,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990518253] [2021-06-16 15:49:50,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:49:50,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:50,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:49:50,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:49:50,655 INFO L87 Difference]: Start difference. First operand 2669 states and 7637 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:50,827 INFO L93 Difference]: Finished difference Result 2498 states and 6779 transitions. [2021-06-16 15:49:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:49:50,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2021-06-16 15:49:50,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:50,832 INFO L225 Difference]: With dead ends: 2498 [2021-06-16 15:49:50,832 INFO L226 Difference]: Without dead ends: 1658 [2021-06-16 15:49:50,833 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:49:50,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2021-06-16 15:49:50,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1658. [2021-06-16 15:49:50,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1586 states have (on average 2.717528373266078) internal successors, (4310), 1657 states have internal predecessors, (4310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 4310 transitions. [2021-06-16 15:49:50,866 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 4310 transitions. Word has length 67 [2021-06-16 15:49:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:50,867 INFO L482 AbstractCegarLoop]: Abstraction has 1658 states and 4310 transitions. [2021-06-16 15:49:50,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:50,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 4310 transitions. [2021-06-16 15:49:50,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-16 15:49:50,874 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:50,874 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:50,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-16 15:49:50,874 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:50,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:50,875 INFO L82 PathProgramCache]: Analyzing trace with hash 561265520, now seen corresponding path program 1 times [2021-06-16 15:49:50,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:50,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966510143] [2021-06-16 15:49:50,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:50,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:50,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:50,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:50,948 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:50,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:50,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:50,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:50,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:50,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:50,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:50,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966510143] [2021-06-16 15:49:50,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966510143] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:50,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:50,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:50,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278256899] [2021-06-16 15:49:50,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:50,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:50,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:50,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:50,993 INFO L87 Difference]: Start difference. First operand 1658 states and 4310 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:51,088 INFO L93 Difference]: Finished difference Result 2915 states and 7963 transitions. [2021-06-16 15:49:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 15:49:51,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-16 15:49:51,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:51,093 INFO L225 Difference]: With dead ends: 2915 [2021-06-16 15:49:51,093 INFO L226 Difference]: Without dead ends: 1888 [2021-06-16 15:49:51,094 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:49:51,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2021-06-16 15:49:51,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1600. [2021-06-16 15:49:51,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1528 states have (on average 2.761780104712042) internal successors, (4220), 1599 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 4220 transitions. [2021-06-16 15:49:51,128 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 4220 transitions. Word has length 69 [2021-06-16 15:49:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:51,129 INFO L482 AbstractCegarLoop]: Abstraction has 1600 states and 4220 transitions. [2021-06-16 15:49:51,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 4220 transitions. [2021-06-16 15:49:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-16 15:49:51,132 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:51,132 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:51,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-16 15:49:51,132 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:51,133 INFO L82 PathProgramCache]: Analyzing trace with hash 541113458, now seen corresponding path program 1 times [2021-06-16 15:49:51,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:51,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117436683] [2021-06-16 15:49:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:51,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:51,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:51,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:51,172 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:49:51,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:49:51,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:51,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:51,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:51,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:51,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117436683] [2021-06-16 15:49:51,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117436683] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:51,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:51,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:49:51,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349911082] [2021-06-16 15:49:51,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:49:51,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:51,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:49:51,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:49:51,215 INFO L87 Difference]: Start difference. First operand 1600 states and 4220 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:51,308 INFO L93 Difference]: Finished difference Result 2020 states and 5238 transitions. [2021-06-16 15:49:51,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 15:49:51,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-16 15:49:51,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:51,311 INFO L225 Difference]: With dead ends: 2020 [2021-06-16 15:49:51,311 INFO L226 Difference]: Without dead ends: 1041 [2021-06-16 15:49:51,311 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 93.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:49:51,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-06-16 15:49:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 825. [2021-06-16 15:49:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 762 states have (on average 2.341207349081365) internal successors, (1784), 824 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1784 transitions. [2021-06-16 15:49:51,341 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1784 transitions. Word has length 69 [2021-06-16 15:49:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:51,341 INFO L482 AbstractCegarLoop]: Abstraction has 825 states and 1784 transitions. [2021-06-16 15:49:51,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1784 transitions. [2021-06-16 15:49:51,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-16 15:49:51,343 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:49:51,343 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:49:51,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-16 15:49:51,343 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:49:51,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:49:51,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1886225002, now seen corresponding path program 2 times [2021-06-16 15:49:51,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:49:51,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869493959] [2021-06-16 15:49:51,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:49:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:49:51,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:51,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:51,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:51,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:51,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:49:51,394 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:49:51,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:49:51,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:49:51,421 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:49:51,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:49:51,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:49:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:49:51,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:49:51,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:49:51,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869493959] [2021-06-16 15:49:51,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869493959] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:49:51,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:49:51,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 15:49:51,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856707105] [2021-06-16 15:49:51,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 15:49:51,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:49:51,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 15:49:51,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-16 15:49:51,434 INFO L87 Difference]: Start difference. First operand 825 states and 1784 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:49:51,528 INFO L93 Difference]: Finished difference Result 303 states and 455 transitions. [2021-06-16 15:49:51,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:49:51,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-16 15:49:51,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:49:51,528 INFO L225 Difference]: With dead ends: 303 [2021-06-16 15:49:51,529 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:49:51,529 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 107.9ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:49:51,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:49:51,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:49:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:49:51,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2021-06-16 15:49:51,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:49:51,530 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:49:51,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:49:51,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:49:51,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:49:51,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-16 15:49:51,532 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:49:51,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:49:51 BasicIcfg [2021-06-16 15:49:51,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:49:51,536 INFO L168 Benchmark]: Toolchain (without parser) took 15236.21 ms. Allocated memory was 195.0 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 158.9 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 401.3 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:51,536 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 195.0 MB. Free memory is still 177.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:49:51,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.25 ms. Allocated memory is still 195.0 MB. Free memory was 158.8 MB in the beginning and 158.2 MB in the end (delta: 524.9 kB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:51,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.46 ms. Allocated memory is still 195.0 MB. Free memory was 158.2 MB in the beginning and 156.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:51,539 INFO L168 Benchmark]: Boogie Preprocessor took 20.44 ms. Allocated memory is still 195.0 MB. Free memory was 156.1 MB in the beginning and 154.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:51,540 INFO L168 Benchmark]: RCFGBuilder took 567.85 ms. Allocated memory is still 195.0 MB. Free memory was 154.6 MB in the beginning and 128.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:51,544 INFO L168 Benchmark]: TraceAbstraction took 14150.41 ms. Allocated memory was 195.0 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 128.4 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 370.3 MB. Max. memory is 8.0 GB. [2021-06-16 15:49:51,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 195.0 MB. Free memory is still 177.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 450.25 ms. Allocated memory is still 195.0 MB. Free memory was 158.8 MB in the beginning and 158.2 MB in the end (delta: 524.9 kB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.46 ms. Allocated memory is still 195.0 MB. Free memory was 158.2 MB in the beginning and 156.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.44 ms. Allocated memory is still 195.0 MB. Free memory was 156.1 MB in the beginning and 154.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 567.85 ms. Allocated memory is still 195.0 MB. Free memory was 154.6 MB in the beginning and 128.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14150.41 ms. Allocated memory was 195.0 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 128.4 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 370.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 260128, positive: 253451, positive conditional: 253451, positive unconditional: 0, negative: 6677, negative conditional: 6677, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 257888, positive: 253451, positive conditional: 0, positive unconditional: 253451, negative: 4437, negative conditional: 0, negative unconditional: 4437, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1479, positive: 1458, positive conditional: 0, positive unconditional: 1458, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1479, positive: 1451, positive conditional: 0, positive unconditional: 1451, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 107, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 257888, positive: 251993, positive conditional: 0, positive unconditional: 251993, negative: 4416, negative conditional: 0, negative unconditional: 4416, unknown: 1479, unknown conditional: 0, unknown unconditional: 1479] , Statistics on independence cache: Total cache size (in pairs): 1479, Positive cache size: 1458, Positive conditional cache size: 0, Positive unconditional cache size: 1458, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Independence queries for same thread: 2240 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14007.3ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 288.5ms, AutomataDifference: 3532.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6540.8ms, PartialOrderReductionTime: 6523.1ms, HoareTripleCheckerStatistics: 1268 SDtfs, 2050 SDslu, 4303 SDs, 0 SdLazy, 542 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 532.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1622.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51816occurred in iteration=0, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1749.9ms AutomataMinimizationTime, 11 MinimizatonAttempts, 588 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.1ms SsaConstructionTime, 257.6ms SatisfiabilityAnalysisTime, 1388.0ms InterpolantComputationTime, 706 NumberOfCodeBlocks, 706 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 695 ConstructedInterpolants, 0 QuantifiedInterpolants, 2845 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...