/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:06:06,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:06:06,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:06:06,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 23:06:06,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 23:06:06,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 23:06:06,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 23:06:06,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 23:06:06,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 23:06:06,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 23:06:06,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 23:06:06,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 23:06:06,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 23:06:06,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 23:06:06,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 23:06:06,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 23:06:06,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 23:06:06,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 23:06:06,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 23:06:06,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 23:06:06,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 23:06:06,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 23:06:06,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 23:06:06,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 23:06:06,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 23:06:06,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 23:06:06,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 23:06:06,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 23:06:06,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 23:06:06,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 23:06:06,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 23:06:06,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 23:06:06,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 23:06:06,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 23:06:06,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 23:06:06,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 23:06:06,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 23:06:06,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 23:06:06,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 23:06:06,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 23:06:06,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 23:06:06,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 23:06:06,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:06:06,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:06:06,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:06:06,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:06:06,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:06:06,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:06:06,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:06:06,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:06:06,831 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:06:06,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:06:06,831 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:06:06,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:06:06,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:06:06,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:06:06,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:06:06,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:06:06,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:06:06,832 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:06:06,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:06:06,832 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:06:06,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:06:06,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:06:06,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:06:06,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:06:06,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:06:06,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:06:06,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:06:06,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:06:06,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:06:06,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:06:06,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:06:06,836 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:06:06,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:06:06,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:06:07,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:06:07,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:06:07,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:06:07,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 23:06:07,021 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 23:06:07,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-02-10 23:06:07,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94dd4b4db/735fa7fe7f6a452288c1d28b59ed75c6/FLAG8b3e027d6 [2022-02-10 23:06:07,410 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 23:06:07,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-02-10 23:06:07,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94dd4b4db/735fa7fe7f6a452288c1d28b59ed75c6/FLAG8b3e027d6 [2022-02-10 23:06:07,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94dd4b4db/735fa7fe7f6a452288c1d28b59ed75c6 [2022-02-10 23:06:07,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:06:07,833 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 23:06:07,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 23:06:07,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 23:06:07,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 23:06:07,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:06:07" (1/1) ... [2022-02-10 23:06:07,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31557c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:07, skipping insertion in model container [2022-02-10 23:06:07,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:06:07" (1/1) ... [2022-02-10 23:06:07,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 23:06:07,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 23:06:08,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c[2690,2703] [2022-02-10 23:06:08,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:06:08,064 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 23:06:08,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c[2690,2703] [2022-02-10 23:06:08,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:06:08,103 INFO L208 MainTranslator]: Completed translation [2022-02-10 23:06:08,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08 WrapperNode [2022-02-10 23:06:08,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 23:06:08,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:06:08,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:06:08,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:06:08,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,131 INFO L137 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 121 [2022-02-10 23:06:08,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:06:08,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:06:08,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:06:08,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:06:08,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:06:08,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:06:08,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:06:08,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:06:08,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (1/1) ... [2022-02-10 23:06:08,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:06:08,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:08,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 23:06:08,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 23:06:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 23:06:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 23:06:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 23:06:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 23:06:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 23:06:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 23:06:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 23:06:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 23:06:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 23:06:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 23:06:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 23:06:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 23:06:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 23:06:08,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 23:06:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:06:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:06:08,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 23:06:08,304 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 23:06:08,403 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:06:08,404 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:06:08,606 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:06:08,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:06:08,630 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-02-10 23:06:08,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:06:08 BoogieIcfgContainer [2022-02-10 23:06:08,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:06:08,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:06:08,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:06:08,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:06:08,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 11:06:07" (1/3) ... [2022-02-10 23:06:08,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54096e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:06:08, skipping insertion in model container [2022-02-10 23:06:08,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:06:08" (2/3) ... [2022-02-10 23:06:08,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54096e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:06:08, skipping insertion in model container [2022-02-10 23:06:08,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:06:08" (3/3) ... [2022-02-10 23:06:08,637 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2022-02-10 23:06:08,642 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:06:08,642 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:06:08,642 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 23:06:08,642 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:06:08,722 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,723 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,723 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,723 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,723 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,724 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,724 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,724 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,724 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,724 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,724 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,724 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,725 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,725 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,726 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,727 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,727 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,727 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,727 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,727 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,728 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,728 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,728 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,729 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,729 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,730 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,730 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,730 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,730 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,730 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,731 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,731 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,731 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,732 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,732 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,732 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,732 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,732 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,732 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,733 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,733 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,733 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,733 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,733 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,733 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,734 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,734 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,734 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,739 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,740 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,740 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,740 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,741 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,741 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,741 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,741 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,741 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,741 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,742 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,742 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,742 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,743 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,743 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,748 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,749 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,750 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,750 WARN L322 ript$VariableManager]: TermVariable thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,750 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,751 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,751 WARN L322 ript$VariableManager]: TermVariable thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,751 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,751 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,751 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,752 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,752 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,752 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,752 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,752 WARN L322 ript$VariableManager]: TermVariable thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,752 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:06:08,756 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 23:06:08,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:06:08,790 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:06:08,790 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-10 23:06:08,800 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 180 places, 186 transitions, 396 flow [2022-02-10 23:06:09,005 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 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) [2022-02-10 23:06:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 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) [2022-02-10 23:06:09,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-10 23:06:09,067 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:09,067 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:09,068 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:09,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:09,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1889282923, now seen corresponding path program 1 times [2022-02-10 23:06:09,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:09,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401267374] [2022-02-10 23:06:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:09,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:06:09,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:09,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401267374] [2022-02-10 23:06:09,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401267374] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:06:09,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:06:09,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 23:06:09,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126576225] [2022-02-10 23:06:09,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:06:09,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 23:06:09,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:09,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 23:06:09,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:06:09,355 INFO L87 Difference]: Start difference. First operand has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 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 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2022-02-10 23:06:09,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:09,463 INFO L93 Difference]: Finished difference Result 6035 states and 21899 transitions. [2022-02-10 23:06:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 23:06:09,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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 124 [2022-02-10 23:06:09,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:09,659 INFO L225 Difference]: With dead ends: 6035 [2022-02-10 23:06:09,660 INFO L226 Difference]: Without dead ends: 6030 [2022-02-10 23:06:09,661 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 23:06:09,663 INFO L934 BasicCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:09,663 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:06:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2022-02-10 23:06:09,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 6030. [2022-02-10 23:06:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 6029 states have (on average 3.6314480013269197) internal successors, (21894), 6029 states have internal predecessors, (21894), 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) [2022-02-10 23:06:09,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 21894 transitions. [2022-02-10 23:06:09,848 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 21894 transitions. Word has length 124 [2022-02-10 23:06:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:09,849 INFO L470 AbstractCegarLoop]: Abstraction has 6030 states and 21894 transitions. [2022-02-10 23:06:09,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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) [2022-02-10 23:06:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 21894 transitions. [2022-02-10 23:06:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-10 23:06:09,930 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:09,930 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:09,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:06:09,931 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:09,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:09,931 INFO L85 PathProgramCache]: Analyzing trace with hash -79140489, now seen corresponding path program 1 times [2022-02-10 23:06:09,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:09,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130282520] [2022-02-10 23:06:09,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:09,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:10,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:06:10,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:10,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130282520] [2022-02-10 23:06:10,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130282520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:06:10,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:06:10,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-10 23:06:10,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183372094] [2022-02-10 23:06:10,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:06:10,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-10 23:06:10,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-10 23:06:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-02-10 23:06:10,836 INFO L87 Difference]: Start difference. First operand 6030 states and 21894 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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) [2022-02-10 23:06:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:11,650 INFO L93 Difference]: Finished difference Result 17647 states and 64359 transitions. [2022-02-10 23:06:11,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 23:06:11,650 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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 124 [2022-02-10 23:06:11,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:11,819 INFO L225 Difference]: With dead ends: 17647 [2022-02-10 23:06:11,819 INFO L226 Difference]: Without dead ends: 16717 [2022-02-10 23:06:11,820 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=189, Invalid=317, Unknown=0, NotChecked=0, Total=506 [2022-02-10 23:06:11,821 INFO L934 BasicCegarLoop]: 131 mSDtfsCounter, 1442 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:11,821 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1442 Valid, 973 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 23:06:11,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16717 states. [2022-02-10 23:06:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16717 to 7575. [2022-02-10 23:06:12,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7575 states, 7574 states have (on average 3.6198838130446265) internal successors, (27417), 7574 states have internal predecessors, (27417), 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) [2022-02-10 23:06:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7575 states to 7575 states and 27417 transitions. [2022-02-10 23:06:12,160 INFO L78 Accepts]: Start accepts. Automaton has 7575 states and 27417 transitions. Word has length 124 [2022-02-10 23:06:12,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:12,162 INFO L470 AbstractCegarLoop]: Abstraction has 7575 states and 27417 transitions. [2022-02-10 23:06:12,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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) [2022-02-10 23:06:12,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7575 states and 27417 transitions. [2022-02-10 23:06:12,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-10 23:06:12,183 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:12,184 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:12,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 23:06:12,184 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:12,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:12,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2040901353, now seen corresponding path program 1 times [2022-02-10 23:06:12,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:12,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484117234] [2022-02-10 23:06:12,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:12,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:06:12,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:12,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484117234] [2022-02-10 23:06:12,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484117234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:06:12,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:06:12,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 23:06:12,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757838552] [2022-02-10 23:06:12,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:06:12,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 23:06:12,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:12,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 23:06:12,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-10 23:06:12,258 INFO L87 Difference]: Start difference. First operand 7575 states and 27417 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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) [2022-02-10 23:06:12,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:12,540 INFO L93 Difference]: Finished difference Result 13777 states and 48829 transitions. [2022-02-10 23:06:12,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 23:06:12,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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 131 [2022-02-10 23:06:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:12,643 INFO L225 Difference]: With dead ends: 13777 [2022-02-10 23:06:12,643 INFO L226 Difference]: Without dead ends: 13297 [2022-02-10 23:06:12,643 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:06:12,644 INFO L934 BasicCegarLoop]: 154 mSDtfsCounter, 771 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:12,644 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 536 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:06:12,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13297 states. [2022-02-10 23:06:12,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13297 to 8135. [2022-02-10 23:06:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8135 states, 8134 states have (on average 3.610892549791001) internal successors, (29371), 8134 states have internal predecessors, (29371), 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) [2022-02-10 23:06:12,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8135 states to 8135 states and 29371 transitions. [2022-02-10 23:06:12,921 INFO L78 Accepts]: Start accepts. Automaton has 8135 states and 29371 transitions. Word has length 131 [2022-02-10 23:06:12,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:12,922 INFO L470 AbstractCegarLoop]: Abstraction has 8135 states and 29371 transitions. [2022-02-10 23:06:12,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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) [2022-02-10 23:06:12,922 INFO L276 IsEmpty]: Start isEmpty. Operand 8135 states and 29371 transitions. [2022-02-10 23:06:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-10 23:06:12,948 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:12,948 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:12,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 23:06:12,948 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:12,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:12,949 INFO L85 PathProgramCache]: Analyzing trace with hash 991679570, now seen corresponding path program 1 times [2022-02-10 23:06:12,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:12,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330240927] [2022-02-10 23:06:12,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:12,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:06:13,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:13,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330240927] [2022-02-10 23:06:13,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330240927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:06:13,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:06:13,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 23:06:13,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375187027] [2022-02-10 23:06:13,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:06:13,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 23:06:13,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:13,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 23:06:13,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-10 23:06:13,017 INFO L87 Difference]: Start difference. First operand 8135 states and 29371 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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) [2022-02-10 23:06:13,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:13,236 INFO L93 Difference]: Finished difference Result 7687 states and 26509 transitions. [2022-02-10 23:06:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 23:06:13,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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 131 [2022-02-10 23:06:13,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:13,259 INFO L225 Difference]: With dead ends: 7687 [2022-02-10 23:06:13,259 INFO L226 Difference]: Without dead ends: 6040 [2022-02-10 23:06:13,259 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:06:13,260 INFO L934 BasicCegarLoop]: 142 mSDtfsCounter, 692 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:13,260 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 530 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:06:13,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2022-02-10 23:06:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 6032. [2022-02-10 23:06:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 6031 states have (on average 3.63057536063671) internal successors, (21896), 6031 states have internal predecessors, (21896), 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) [2022-02-10 23:06:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 21896 transitions. [2022-02-10 23:06:13,382 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 21896 transitions. Word has length 131 [2022-02-10 23:06:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:13,382 INFO L470 AbstractCegarLoop]: Abstraction has 6032 states and 21896 transitions. [2022-02-10 23:06:13,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 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) [2022-02-10 23:06:13,383 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 21896 transitions. [2022-02-10 23:06:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-02-10 23:06:13,396 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:13,396 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:13,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 23:06:13,396 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:13,411 INFO L85 PathProgramCache]: Analyzing trace with hash 728658965, now seen corresponding path program 1 times [2022-02-10 23:06:13,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:13,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673008250] [2022-02-10 23:06:13,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:13,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:06:13,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:13,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673008250] [2022-02-10 23:06:13,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673008250] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:13,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024609089] [2022-02-10 23:06:13,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:13,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:13,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:13,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:13,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 23:06:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:13,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-10 23:06:13,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:06:13,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 23:06:14,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024609089] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:14,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 23:06:14,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-02-10 23:06:14,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149410704] [2022-02-10 23:06:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:06:14,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 23:06:14,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:14,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 23:06:14,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:06:14,103 INFO L87 Difference]: Start difference. First operand 6032 states and 21896 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2022-02-10 23:06:14,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:14,196 INFO L93 Difference]: Finished difference Result 6615 states and 24055 transitions. [2022-02-10 23:06:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 23:06:14,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 136 [2022-02-10 23:06:14,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:14,214 INFO L225 Difference]: With dead ends: 6615 [2022-02-10 23:06:14,214 INFO L226 Difference]: Without dead ends: 6615 [2022-02-10 23:06:14,216 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:06:14,217 INFO L934 BasicCegarLoop]: 163 mSDtfsCounter, 454 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:14,218 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 377 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:06:14,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2022-02-10 23:06:14,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 6615. [2022-02-10 23:06:14,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 6614 states have (on average 3.6369821590565468) internal successors, (24055), 6614 states have internal predecessors, (24055), 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) [2022-02-10 23:06:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 24055 transitions. [2022-02-10 23:06:14,409 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 24055 transitions. Word has length 136 [2022-02-10 23:06:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:14,410 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 24055 transitions. [2022-02-10 23:06:14,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2022-02-10 23:06:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 24055 transitions. [2022-02-10 23:06:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-02-10 23:06:14,427 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:14,427 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:14,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 23:06:14,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:14,651 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:14,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:14,652 INFO L85 PathProgramCache]: Analyzing trace with hash 877480859, now seen corresponding path program 1 times [2022-02-10 23:06:14,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:14,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008992188] [2022-02-10 23:06:14,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:14,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:14,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 23:06:14,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:14,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008992188] [2022-02-10 23:06:14,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008992188] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:14,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914870674] [2022-02-10 23:06:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:14,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:14,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:14,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:14,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 23:06:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:14,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-10 23:06:14,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 23:06:15,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 23:06:15,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914870674] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:15,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 23:06:15,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-02-10 23:06:15,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992024914] [2022-02-10 23:06:15,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:06:15,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 23:06:15,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:15,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 23:06:15,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:06:15,337 INFO L87 Difference]: Start difference. First operand 6615 states and 24055 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2022-02-10 23:06:15,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:15,439 INFO L93 Difference]: Finished difference Result 7135 states and 25975 transitions. [2022-02-10 23:06:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 23:06:15,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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 142 [2022-02-10 23:06:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:15,458 INFO L225 Difference]: With dead ends: 7135 [2022-02-10 23:06:15,458 INFO L226 Difference]: Without dead ends: 7135 [2022-02-10 23:06:15,459 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:06:15,459 INFO L934 BasicCegarLoop]: 158 mSDtfsCounter, 393 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:15,459 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 370 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:06:15,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7135 states. [2022-02-10 23:06:15,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7135 to 7135. [2022-02-10 23:06:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7135 states, 7134 states have (on average 3.6410148584244464) internal successors, (25975), 7134 states have internal predecessors, (25975), 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) [2022-02-10 23:06:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7135 states to 7135 states and 25975 transitions. [2022-02-10 23:06:15,701 INFO L78 Accepts]: Start accepts. Automaton has 7135 states and 25975 transitions. Word has length 142 [2022-02-10 23:06:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:15,701 INFO L470 AbstractCegarLoop]: Abstraction has 7135 states and 25975 transitions. [2022-02-10 23:06:15,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2022-02-10 23:06:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7135 states and 25975 transitions. [2022-02-10 23:06:15,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-10 23:06:15,717 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:15,717 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:15,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 23:06:15,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-10 23:06:15,934 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:15,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash -86048338, now seen corresponding path program 1 times [2022-02-10 23:06:15,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:15,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171351184] [2022-02-10 23:06:15,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:16,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:16,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171351184] [2022-02-10 23:06:16,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171351184] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:16,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394867912] [2022-02-10 23:06:16,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:16,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:16,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:16,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:16,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 23:06:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:16,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-10 23:06:16,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:16,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:16,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394867912] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:16,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 23:06:16,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-02-10 23:06:16,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989837069] [2022-02-10 23:06:16,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:06:16,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 23:06:16,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:16,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 23:06:16,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-02-10 23:06:16,746 INFO L87 Difference]: Start difference. First operand 7135 states and 25975 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2022-02-10 23:06:16,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:16,904 INFO L93 Difference]: Finished difference Result 7735 states and 28209 transitions. [2022-02-10 23:06:16,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 23:06:16,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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 149 [2022-02-10 23:06:16,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:16,930 INFO L225 Difference]: With dead ends: 7735 [2022-02-10 23:06:16,930 INFO L226 Difference]: Without dead ends: 7735 [2022-02-10 23:06:16,931 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 290 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:06:16,932 INFO L934 BasicCegarLoop]: 164 mSDtfsCounter, 427 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:16,932 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 376 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:06:16,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2022-02-10 23:06:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 7735. [2022-02-10 23:06:17,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7735 states, 7734 states have (on average 3.647401086113266) internal successors, (28209), 7734 states have internal predecessors, (28209), 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) [2022-02-10 23:06:17,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7735 states to 7735 states and 28209 transitions. [2022-02-10 23:06:17,161 INFO L78 Accepts]: Start accepts. Automaton has 7735 states and 28209 transitions. Word has length 149 [2022-02-10 23:06:17,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:17,162 INFO L470 AbstractCegarLoop]: Abstraction has 7735 states and 28209 transitions. [2022-02-10 23:06:17,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2022-02-10 23:06:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7735 states and 28209 transitions. [2022-02-10 23:06:17,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-10 23:06:17,183 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:17,183 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:17,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 23:06:17,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:17,406 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:17,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:17,407 INFO L85 PathProgramCache]: Analyzing trace with hash -167158528, now seen corresponding path program 1 times [2022-02-10 23:06:17,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:17,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227347564] [2022-02-10 23:06:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:17,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:17,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:17,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:17,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227347564] [2022-02-10 23:06:17,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227347564] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:17,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344715640] [2022-02-10 23:06:17,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:17,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:17,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:17,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:17,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 23:06:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:17,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-10 23:06:17,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:17,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:18,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344715640] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:18,139 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:18,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-02-10 23:06:18,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356017781] [2022-02-10 23:06:18,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:18,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-10 23:06:18,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:18,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-10 23:06:18,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-02-10 23:06:18,140 INFO L87 Difference]: Start difference. First operand 7735 states and 28209 transitions. Second operand has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 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) [2022-02-10 23:06:18,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:18,323 INFO L93 Difference]: Finished difference Result 13609 states and 49260 transitions. [2022-02-10 23:06:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 23:06:18,324 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 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 156 [2022-02-10 23:06:18,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:18,356 INFO L225 Difference]: With dead ends: 13609 [2022-02-10 23:06:18,356 INFO L226 Difference]: Without dead ends: 12457 [2022-02-10 23:06:18,357 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-02-10 23:06:18,357 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 516 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:18,357 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 1269 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:06:18,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12457 states. [2022-02-10 23:06:18,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12457 to 9589. [2022-02-10 23:06:18,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9589 states, 9588 states have (on average 3.605131414267835) internal successors, (34566), 9588 states have internal predecessors, (34566), 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) [2022-02-10 23:06:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9589 states to 9589 states and 34566 transitions. [2022-02-10 23:06:18,596 INFO L78 Accepts]: Start accepts. Automaton has 9589 states and 34566 transitions. Word has length 156 [2022-02-10 23:06:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:18,597 INFO L470 AbstractCegarLoop]: Abstraction has 9589 states and 34566 transitions. [2022-02-10 23:06:18,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 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) [2022-02-10 23:06:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand 9589 states and 34566 transitions. [2022-02-10 23:06:18,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-10 23:06:18,619 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:18,619 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:18,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 23:06:18,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:18,840 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:18,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:18,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1531874940, now seen corresponding path program 2 times [2022-02-10 23:06:18,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:18,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899085457] [2022-02-10 23:06:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:18,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:19,047 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:19,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:19,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899085457] [2022-02-10 23:06:19,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899085457] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:19,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257822218] [2022-02-10 23:06:19,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 23:06:19,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:19,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:19,064 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:19,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 23:06:19,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 23:06:19,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:06:19,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 23:06:19,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:19,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 23:06:19,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257822218] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:19,835 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:19,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21 [2022-02-10 23:06:19,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413121961] [2022-02-10 23:06:19,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:19,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-10 23:06:19,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-10 23:06:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-02-10 23:06:19,837 INFO L87 Difference]: Start difference. First operand 9589 states and 34566 transitions. Second operand has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 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) [2022-02-10 23:06:22,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:22,177 INFO L93 Difference]: Finished difference Result 23250 states and 84117 transitions. [2022-02-10 23:06:22,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 23:06:22,192 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 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 162 [2022-02-10 23:06:22,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:22,249 INFO L225 Difference]: With dead ends: 23250 [2022-02-10 23:06:22,249 INFO L226 Difference]: Without dead ends: 17817 [2022-02-10 23:06:22,251 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=991, Invalid=4861, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 23:06:22,253 INFO L934 BasicCegarLoop]: 404 mSDtfsCounter, 1945 mSDsluCounter, 4291 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:22,253 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1945 Valid, 4429 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-10 23:06:22,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17817 states. [2022-02-10 23:06:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17817 to 13603. [2022-02-10 23:06:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13603 states, 13602 states have (on average 3.663431848257609) internal successors, (49830), 13602 states have internal predecessors, (49830), 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) [2022-02-10 23:06:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13603 states to 13603 states and 49830 transitions. [2022-02-10 23:06:22,631 INFO L78 Accepts]: Start accepts. Automaton has 13603 states and 49830 transitions. Word has length 162 [2022-02-10 23:06:22,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:22,632 INFO L470 AbstractCegarLoop]: Abstraction has 13603 states and 49830 transitions. [2022-02-10 23:06:22,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 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) [2022-02-10 23:06:22,633 INFO L276 IsEmpty]: Start isEmpty. Operand 13603 states and 49830 transitions. [2022-02-10 23:06:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-10 23:06:22,660 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:22,660 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:22,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 23:06:22,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:22,873 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1430656672, now seen corresponding path program 3 times [2022-02-10 23:06:22,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:22,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172293722] [2022-02-10 23:06:22,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:22,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-10 23:06:23,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:23,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172293722] [2022-02-10 23:06:23,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172293722] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:23,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400559704] [2022-02-10 23:06:23,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 23:06:23,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:23,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:23,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:23,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 23:06:23,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-10 23:06:23,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:06:23,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 23:06:23,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-10 23:06:23,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-10 23:06:23,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400559704] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:23,800 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:23,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-02-10 23:06:23,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426406928] [2022-02-10 23:06:23,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:23,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-10 23:06:23,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:23,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-10 23:06:23,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-02-10 23:06:23,801 INFO L87 Difference]: Start difference. First operand 13603 states and 49830 transitions. Second operand has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 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) [2022-02-10 23:06:24,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:24,285 INFO L93 Difference]: Finished difference Result 20071 states and 74652 transitions. [2022-02-10 23:06:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 23:06:24,287 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 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 174 [2022-02-10 23:06:24,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:24,336 INFO L225 Difference]: With dead ends: 20071 [2022-02-10 23:06:24,336 INFO L226 Difference]: Without dead ends: 20071 [2022-02-10 23:06:24,336 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 335 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2022-02-10 23:06:24,348 INFO L934 BasicCegarLoop]: 168 mSDtfsCounter, 1160 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:24,352 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 1130 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 23:06:24,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20071 states. [2022-02-10 23:06:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20071 to 12835. [2022-02-10 23:06:24,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 3.661290322580645) internal successors, (46989), 12834 states have internal predecessors, (46989), 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) [2022-02-10 23:06:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 46989 transitions. [2022-02-10 23:06:24,796 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 46989 transitions. Word has length 174 [2022-02-10 23:06:24,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:24,796 INFO L470 AbstractCegarLoop]: Abstraction has 12835 states and 46989 transitions. [2022-02-10 23:06:24,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 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) [2022-02-10 23:06:24,796 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 46989 transitions. [2022-02-10 23:06:24,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-10 23:06:24,823 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:24,823 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:24,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-10 23:06:25,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:25,045 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:25,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:25,046 INFO L85 PathProgramCache]: Analyzing trace with hash 802068047, now seen corresponding path program 4 times [2022-02-10 23:06:25,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:25,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070507669] [2022-02-10 23:06:25,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:25,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:25,146 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-10 23:06:25,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:25,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070507669] [2022-02-10 23:06:25,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070507669] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:25,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072950547] [2022-02-10 23:06:25,146 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 23:06:25,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:25,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:25,147 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:25,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 23:06:25,239 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 23:06:25,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:06:25,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 23:06:25,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:25,592 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-10 23:06:25,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-10 23:06:25,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072950547] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:25,966 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:25,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-02-10 23:06:25,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886726123] [2022-02-10 23:06:25,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:25,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-10 23:06:25,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:25,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-10 23:06:25,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-02-10 23:06:25,967 INFO L87 Difference]: Start difference. First operand 12835 states and 46989 transitions. Second operand has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 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) [2022-02-10 23:06:26,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:26,456 INFO L93 Difference]: Finished difference Result 24835 states and 91701 transitions. [2022-02-10 23:06:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 23:06:26,457 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 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 181 [2022-02-10 23:06:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:26,522 INFO L225 Difference]: With dead ends: 24835 [2022-02-10 23:06:26,523 INFO L226 Difference]: Without dead ends: 24835 [2022-02-10 23:06:26,523 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 347 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2022-02-10 23:06:26,531 INFO L934 BasicCegarLoop]: 181 mSDtfsCounter, 1011 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:26,531 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 1365 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 23:06:26,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24835 states. [2022-02-10 23:06:27,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24835 to 19835. [2022-02-10 23:06:27,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19835 states, 19834 states have (on average 3.684128264596148) internal successors, (73071), 19834 states have internal predecessors, (73071), 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) [2022-02-10 23:06:27,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19835 states to 19835 states and 73071 transitions. [2022-02-10 23:06:27,234 INFO L78 Accepts]: Start accepts. Automaton has 19835 states and 73071 transitions. Word has length 181 [2022-02-10 23:06:27,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:27,234 INFO L470 AbstractCegarLoop]: Abstraction has 19835 states and 73071 transitions. [2022-02-10 23:06:27,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 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) [2022-02-10 23:06:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 19835 states and 73071 transitions. [2022-02-10 23:06:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-10 23:06:27,276 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:27,276 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:27,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-10 23:06:27,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:27,493 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:27,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:27,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1463254721, now seen corresponding path program 5 times [2022-02-10 23:06:27,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:27,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737727453] [2022-02-10 23:06:27,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:27,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-10 23:06:27,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:27,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737727453] [2022-02-10 23:06:27,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737727453] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:27,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936130643] [2022-02-10 23:06:27,665 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 23:06:27,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:27,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:27,680 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:27,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 23:06:27,795 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-02-10 23:06:27,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:06:27,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 23:06:27,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:28,151 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-10 23:06:28,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-10 23:06:28,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936130643] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:28,413 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:28,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 10] total 24 [2022-02-10 23:06:28,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489786290] [2022-02-10 23:06:28,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:28,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-10 23:06:28,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-10 23:06:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-02-10 23:06:28,415 INFO L87 Difference]: Start difference. First operand 19835 states and 73071 transitions. Second operand has 24 states, 24 states have (on average 11.791666666666666) internal successors, (283), 24 states have internal predecessors, (283), 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) [2022-02-10 23:06:31,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:31,632 INFO L93 Difference]: Finished difference Result 71385 states and 263414 transitions. [2022-02-10 23:06:31,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-10 23:06:31,632 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 11.791666666666666) internal successors, (283), 24 states have internal predecessors, (283), 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 188 [2022-02-10 23:06:31,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:31,764 INFO L225 Difference]: With dead ends: 71385 [2022-02-10 23:06:31,764 INFO L226 Difference]: Without dead ends: 42057 [2022-02-10 23:06:31,767 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 368 SyntacticMatches, 2 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4464 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2345, Invalid=11461, Unknown=0, NotChecked=0, Total=13806 [2022-02-10 23:06:31,767 INFO L934 BasicCegarLoop]: 358 mSDtfsCounter, 2746 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 4623 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:31,767 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2746 Valid, 4623 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 23:06:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42057 states. [2022-02-10 23:06:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42057 to 26933. [2022-02-10 23:06:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26933 states, 26932 states have (on average 3.6918535571067874) internal successors, (99429), 26932 states have internal predecessors, (99429), 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) [2022-02-10 23:06:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26933 states to 26933 states and 99429 transitions. [2022-02-10 23:06:32,896 INFO L78 Accepts]: Start accepts. Automaton has 26933 states and 99429 transitions. Word has length 188 [2022-02-10 23:06:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:32,896 INFO L470 AbstractCegarLoop]: Abstraction has 26933 states and 99429 transitions. [2022-02-10 23:06:32,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.791666666666666) internal successors, (283), 24 states have internal predecessors, (283), 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) [2022-02-10 23:06:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 26933 states and 99429 transitions. [2022-02-10 23:06:32,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-02-10 23:06:32,957 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:32,957 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:32,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-10 23:06:33,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-10 23:06:33,172 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:33,172 INFO L85 PathProgramCache]: Analyzing trace with hash -161059487, now seen corresponding path program 6 times [2022-02-10 23:06:33,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:33,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873843576] [2022-02-10 23:06:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:33,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-10 23:06:33,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:33,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873843576] [2022-02-10 23:06:33,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873843576] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:33,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15972291] [2022-02-10 23:06:33,347 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 23:06:33,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:33,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:33,372 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:33,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 23:06:33,518 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-02-10 23:06:33,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:06:33,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 23:06:33,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:34,120 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-10 23:06:34,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-10 23:06:34,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15972291] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:34,321 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:34,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 27 [2022-02-10 23:06:34,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759436420] [2022-02-10 23:06:34,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:34,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-10 23:06:34,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-10 23:06:34,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2022-02-10 23:06:34,322 INFO L87 Difference]: Start difference. First operand 26933 states and 99429 transitions. Second operand has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 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) [2022-02-10 23:06:36,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:36,116 INFO L93 Difference]: Finished difference Result 36929 states and 137985 transitions. [2022-02-10 23:06:36,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-10 23:06:36,116 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 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 206 [2022-02-10 23:06:36,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:36,325 INFO L225 Difference]: With dead ends: 36929 [2022-02-10 23:06:36,325 INFO L226 Difference]: Without dead ends: 36929 [2022-02-10 23:06:36,326 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 399 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1532 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1331, Invalid=4831, Unknown=0, NotChecked=0, Total=6162 [2022-02-10 23:06:36,327 INFO L934 BasicCegarLoop]: 374 mSDtfsCounter, 1377 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:36,327 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1377 Valid, 4968 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 23:06:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36929 states. [2022-02-10 23:06:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36929 to 31931. [2022-02-10 23:06:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31931 states, 31930 states have (on average 3.7177262762292513) internal successors, (118707), 31930 states have internal predecessors, (118707), 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) [2022-02-10 23:06:37,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31931 states to 31931 states and 118707 transitions. [2022-02-10 23:06:37,141 INFO L78 Accepts]: Start accepts. Automaton has 31931 states and 118707 transitions. Word has length 206 [2022-02-10 23:06:37,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:37,142 INFO L470 AbstractCegarLoop]: Abstraction has 31931 states and 118707 transitions. [2022-02-10 23:06:37,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 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) [2022-02-10 23:06:37,142 INFO L276 IsEmpty]: Start isEmpty. Operand 31931 states and 118707 transitions. [2022-02-10 23:06:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-10 23:06:37,211 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:37,212 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:37,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 23:06:37,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-10 23:06:37,430 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:37,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1428556086, now seen corresponding path program 7 times [2022-02-10 23:06:37,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:37,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690449263] [2022-02-10 23:06:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:37,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:37,758 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-10 23:06:37,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:37,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690449263] [2022-02-10 23:06:37,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690449263] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:37,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619951726] [2022-02-10 23:06:37,759 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 23:06:37,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:37,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:37,766 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:37,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 23:06:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:37,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-10 23:06:37,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-10 23:06:38,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-10 23:06:38,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619951726] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:38,729 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:38,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2022-02-10 23:06:38,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121853270] [2022-02-10 23:06:38,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:38,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-10 23:06:38,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:38,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-10 23:06:38,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=918, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 23:06:38,731 INFO L87 Difference]: Start difference. First operand 31931 states and 118707 transitions. Second operand has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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) [2022-02-10 23:06:39,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:39,528 INFO L93 Difference]: Finished difference Result 51275 states and 191355 transitions. [2022-02-10 23:06:39,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 23:06:39,529 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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 213 [2022-02-10 23:06:39,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:39,709 INFO L225 Difference]: With dead ends: 51275 [2022-02-10 23:06:39,709 INFO L226 Difference]: Without dead ends: 51275 [2022-02-10 23:06:39,724 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 405 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=764, Invalid=2658, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 23:06:39,725 INFO L934 BasicCegarLoop]: 185 mSDtfsCounter, 1249 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:39,725 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 1832 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 23:06:39,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51275 states. [2022-02-10 23:06:40,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51275 to 43215. [2022-02-10 23:06:40,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43215 states, 43214 states have (on average 3.727611422224279) internal successors, (161085), 43214 states have internal predecessors, (161085), 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) [2022-02-10 23:06:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43215 states to 43215 states and 161085 transitions. [2022-02-10 23:06:41,199 INFO L78 Accepts]: Start accepts. Automaton has 43215 states and 161085 transitions. Word has length 213 [2022-02-10 23:06:41,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:41,199 INFO L470 AbstractCegarLoop]: Abstraction has 43215 states and 161085 transitions. [2022-02-10 23:06:41,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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) [2022-02-10 23:06:41,200 INFO L276 IsEmpty]: Start isEmpty. Operand 43215 states and 161085 transitions. [2022-02-10 23:06:41,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-02-10 23:06:41,293 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:41,293 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:41,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 23:06:41,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-10 23:06:41,512 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:41,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:41,512 INFO L85 PathProgramCache]: Analyzing trace with hash 358723684, now seen corresponding path program 8 times [2022-02-10 23:06:41,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:41,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979907354] [2022-02-10 23:06:41,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:41,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:41,679 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-10 23:06:41,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:41,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979907354] [2022-02-10 23:06:41,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979907354] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:41,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590461841] [2022-02-10 23:06:41,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 23:06:41,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:41,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:41,682 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:41,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 23:06:41,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 23:06:41,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:06:41,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-10 23:06:41,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-10 23:06:42,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:42,671 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-10 23:06:42,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590461841] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:42,671 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:42,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 24 [2022-02-10 23:06:42,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497838351] [2022-02-10 23:06:42,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:42,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-10 23:06:42,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-10 23:06:42,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-02-10 23:06:42,673 INFO L87 Difference]: Start difference. First operand 43215 states and 161085 transitions. Second operand has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 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) [2022-02-10 23:06:45,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:45,429 INFO L93 Difference]: Finished difference Result 110779 states and 414336 transitions. [2022-02-10 23:06:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-02-10 23:06:45,429 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 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 220 [2022-02-10 23:06:45,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:46,030 INFO L225 Difference]: With dead ends: 110779 [2022-02-10 23:06:46,031 INFO L226 Difference]: Without dead ends: 99943 [2022-02-10 23:06:46,035 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 428 SyntacticMatches, 2 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4638 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1891, Invalid=11449, Unknown=0, NotChecked=0, Total=13340 [2022-02-10 23:06:46,036 INFO L934 BasicCegarLoop]: 611 mSDtfsCounter, 2200 mSDsluCounter, 6959 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:46,036 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2200 Valid, 7144 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 23:06:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99943 states. [2022-02-10 23:06:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99943 to 57957. [2022-02-10 23:06:48,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57957 states, 57956 states have (on average 3.738249706674029) internal successors, (216654), 57956 states have internal predecessors, (216654), 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) [2022-02-10 23:06:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57957 states to 57957 states and 216654 transitions. [2022-02-10 23:06:48,581 INFO L78 Accepts]: Start accepts. Automaton has 57957 states and 216654 transitions. Word has length 220 [2022-02-10 23:06:48,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:48,582 INFO L470 AbstractCegarLoop]: Abstraction has 57957 states and 216654 transitions. [2022-02-10 23:06:48,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 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) [2022-02-10 23:06:48,582 INFO L276 IsEmpty]: Start isEmpty. Operand 57957 states and 216654 transitions. [2022-02-10 23:06:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-02-10 23:06:48,726 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:06:48,726 INFO L515 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:48,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-10 23:06:48,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-10 23:06:48,930 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:06:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:06:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1092594712, now seen corresponding path program 9 times [2022-02-10 23:06:48,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:06:48,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796528466] [2022-02-10 23:06:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:06:48,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:06:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:06:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 29 proven. 32 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-10 23:06:49,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:06:49,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796528466] [2022-02-10 23:06:49,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796528466] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:06:49,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787378045] [2022-02-10 23:06:49,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 23:06:49,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:06:49,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:06:49,132 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:06:49,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 23:06:49,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-10 23:06:49,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:06:49,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 23:06:49,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:06:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-02-10 23:06:49,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:06:49,925 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-02-10 23:06:49,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787378045] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:06:49,926 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:06:49,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 8] total 26 [2022-02-10 23:06:49,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152753657] [2022-02-10 23:06:49,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:06:49,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-10 23:06:49,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:06:49,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-10 23:06:49,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-02-10 23:06:49,928 INFO L87 Difference]: Start difference. First operand 57957 states and 216654 transitions. Second operand has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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) [2022-02-10 23:06:55,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:06:55,344 INFO L93 Difference]: Finished difference Result 116314 states and 429648 transitions. [2022-02-10 23:06:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-02-10 23:06:55,348 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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 226 [2022-02-10 23:06:55,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:06:55,349 INFO L225 Difference]: With dead ends: 116314 [2022-02-10 23:06:55,349 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 23:06:55,353 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 540 SyntacticMatches, 1 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8058 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3586, Invalid=20284, Unknown=0, NotChecked=0, Total=23870 [2022-02-10 23:06:55,353 INFO L934 BasicCegarLoop]: 854 mSDtfsCounter, 1976 mSDsluCounter, 11605 mSDsCounter, 0 mSdLazyCounter, 4623 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 11673 SdHoareTripleChecker+Invalid, 4760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 4623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-10 23:06:55,353 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1976 Valid, 11673 Invalid, 4760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 4623 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-10 23:06:55,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 23:06:55,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 23:06:55,353 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) [2022-02-10 23:06:55,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 23:06:55,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2022-02-10 23:06:55,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:06:55,354 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 23:06:55,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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) [2022-02-10 23:06:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 23:06:55,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 23:06:55,356 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-10 23:06:55,356 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-10 23:06:55,356 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-10 23:06:55,356 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-10 23:06:55,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-02-10 23:06:55,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-10 23:06:55,574 INFO L733 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:06:55,575 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 23:06:55,575 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 23:06:55,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 11:06:55 BasicIcfg [2022-02-10 23:06:55,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 23:06:55,577 INFO L158 Benchmark]: Toolchain (without parser) took 47744.04ms. Allocated memory was 196.1MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 140.1MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-02-10 23:06:55,577 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 23:06:55,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.00ms. Allocated memory was 196.1MB in the beginning and 290.5MB in the end (delta: 94.4MB). Free memory was 139.9MB in the beginning and 261.3MB in the end (delta: -121.5MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-02-10 23:06:55,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.76ms. Allocated memory is still 290.5MB. Free memory was 261.3MB in the beginning and 259.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 23:06:55,577 INFO L158 Benchmark]: Boogie Preprocessor took 26.43ms. Allocated memory is still 290.5MB. Free memory was 259.2MB in the beginning and 257.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 23:06:55,577 INFO L158 Benchmark]: RCFGBuilder took 473.24ms. Allocated memory is still 290.5MB. Free memory was 257.7MB in the beginning and 239.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-02-10 23:06:55,578 INFO L158 Benchmark]: TraceAbstraction took 46943.61ms. Allocated memory was 290.5MB in the beginning and 5.5GB in the end (delta: 5.2GB). Free memory was 239.3MB in the beginning and 3.5GB in the end (delta: -3.2GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-02-10 23:06:55,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.00ms. Allocated memory was 196.1MB in the beginning and 290.5MB in the end (delta: 94.4MB). Free memory was 139.9MB in the beginning and 261.3MB in the end (delta: -121.5MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.76ms. Allocated memory is still 290.5MB. Free memory was 261.3MB in the beginning and 259.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.43ms. Allocated memory is still 290.5MB. Free memory was 259.2MB in the beginning and 257.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 473.24ms. Allocated memory is still 290.5MB. Free memory was 257.7MB in the beginning and 239.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 46943.61ms. Allocated memory was 290.5MB in the beginning and 5.5GB in the end (delta: 5.2GB). Free memory was 239.3MB in the beginning and 3.5GB in the end (delta: -3.2GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 206 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 46.8s, OverallIterations: 16, TraceHistogramMax: 4, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.7s, AutomataDifference: 21.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18359 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18359 mSDsluCounter, 41749 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39805 mSDsCounter, 736 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15088 IncrementalHoareTripleChecker+Invalid, 15824 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 736 mSolverCounterUnsat, 4446 mSDtfsCounter, 15088 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5079 GetRequests, 4286 SyntacticMatches, 19 SemanticMatches, 774 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22192 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57957occurred in iteration=15, InterpolantAutomatonStates: 584, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 103798 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 4816 NumberOfCodeBlocks, 4764 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 6929 ConstructedInterpolants, 0 QuantifiedInterpolants, 18065 SizeOfPredicates, 102 NumberOfNonLiveVariables, 4733 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 40 InterpolantComputations, 7 PerfectInterpolantSequences, 1268/1640 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! [2022-02-10 23:06:55,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...