/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/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-15 11:28:16,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 11:28:16,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 11:28:16,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 11:28:16,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 11:28:16,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 11:28:16,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 11:28:16,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 11:28:16,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 11:28:16,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 11:28:16,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 11:28:16,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 11:28:16,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 11:28:16,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 11:28:16,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 11:28:16,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 11:28:16,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 11:28:16,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 11:28:16,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 11:28:16,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 11:28:16,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 11:28:16,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 11:28:16,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 11:28:16,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 11:28:16,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 11:28:16,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 11:28:16,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 11:28:16,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 11:28:16,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 11:28:16,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 11:28:16,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 11:28:16,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 11:28:16,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 11:28:16,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 11:28:16,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 11:28:16,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 11:28:16,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 11:28:16,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 11:28:16,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 11:28:16,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 11:28:16,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 11:28:16,974 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 [2022-02-15 11:28:16,997 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 11:28:16,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 11:28:16,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-15 11:28:16,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-15 11:28:16,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-15 11:28:16,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-15 11:28:16,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-15 11:28:16,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-15 11:28:16,999 INFO L138 SettingsManager]: * Use SBE=true [2022-02-15 11:28:17,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 11:28:17,000 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 11:28:17,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 11:28:17,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 11:28:17,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 11:28:17,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 11:28:17,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 11:28:17,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 11:28:17,001 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 11:28:17,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 11:28:17,001 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 11:28:17,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 11:28:17,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 11:28:17,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 11:28:17,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 11:28:17,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 11:28:17,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 11:28:17,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 11:28:17,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-15 11:28:17,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-15 11:28:17,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 11:28:17,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-15 11:28:17,003 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-15 11:28:17,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 11:28:17,004 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-15 11:28:17,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 11:28:17,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 11:28:17,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 11:28:17,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 11:28:17,216 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 11:28:17,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-02-15 11:28:17,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63aacf464/b1e8cfa34be34b5585591bb44f34e0dc/FLAG48bae3700 [2022-02-15 11:28:17,553 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 11:28:17,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-02-15 11:28:17,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63aacf464/b1e8cfa34be34b5585591bb44f34e0dc/FLAG48bae3700 [2022-02-15 11:28:17,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63aacf464/b1e8cfa34be34b5585591bb44f34e0dc [2022-02-15 11:28:17,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 11:28:17,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 11:28:17,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 11:28:17,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 11:28:17,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 11:28:17,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:28:17" (1/1) ... [2022-02-15 11:28:17,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bdc9031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:17, skipping insertion in model container [2022-02-15 11:28:17,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:28:17" (1/1) ... [2022-02-15 11:28:17,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 11:28:18,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 11:28:18,144 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/chl-sre-subst.wvr.c[2333,2346] [2022-02-15 11:28:18,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 11:28:18,155 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 11:28:18,168 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/chl-sre-subst.wvr.c[2333,2346] [2022-02-15 11:28:18,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 11:28:18,178 INFO L208 MainTranslator]: Completed translation [2022-02-15 11:28:18,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18 WrapperNode [2022-02-15 11:28:18,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 11:28:18,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-15 11:28:18,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-15 11:28:18,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-15 11:28:18,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,200 INFO L137 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-02-15 11:28:18,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-15 11:28:18,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 11:28:18,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 11:28:18,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 11:28:18,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 11:28:18,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 11:28:18,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 11:28:18,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 11:28:18,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (1/1) ... [2022-02-15 11:28:18,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 11:28:18,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 11:28:18,259 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) [2022-02-15 11:28:18,266 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 [2022-02-15 11:28:18,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 11:28:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-15 11:28:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-15 11:28:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-15 11:28:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-15 11:28:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-15 11:28:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-15 11:28:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 11:28:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 11:28:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 11:28:18,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 11:28:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 11:28:18,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 11:28:18,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 11:28:18,306 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-15 11:28:18,355 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 11:28:18,357 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 11:28:18,508 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 11:28:18,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 11:28:18,514 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-15 11:28:18,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:28:18 BoogieIcfgContainer [2022-02-15 11:28:18,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 11:28:18,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 11:28:18,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 11:28:18,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 11:28:18,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 11:28:17" (1/3) ... [2022-02-15 11:28:18,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ba7e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:28:18, skipping insertion in model container [2022-02-15 11:28:18,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:28:18" (2/3) ... [2022-02-15 11:28:18,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ba7e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:28:18, skipping insertion in model container [2022-02-15 11:28:18,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:28:18" (3/3) ... [2022-02-15 11:28:18,520 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-02-15 11:28:18,523 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-15 11:28:18,523 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-15 11:28:18,523 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 11:28:18,523 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-15 11:28:18,566 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,566 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,566 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,574 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,574 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,575 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,575 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,576 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,576 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,576 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,576 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,576 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,576 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,577 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,578 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,582 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,583 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,583 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,583 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,584 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:28:18,591 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-15 11:28:18,626 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 11:28:18,631 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, mLazyFiniteAutomaton=false, 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 [2022-02-15 11:28:18,631 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-15 11:28:18,639 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 126 places, 124 transitions, 272 flow [2022-02-15 11:28:18,878 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 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) [2022-02-15 11:28:18,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 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) [2022-02-15 11:28:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-15 11:28:19,002 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:19,003 INFO L514 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] [2022-02-15 11:28:19,004 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:19,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:19,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1667943660, now seen corresponding path program 1 times [2022-02-15 11:28:19,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:19,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374793082] [2022-02-15 11:28:19,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:19,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:19,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:19,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374793082] [2022-02-15 11:28:19,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374793082] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:19,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:19,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 11:28:19,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082743201] [2022-02-15 11:28:19,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:19,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 11:28:19,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:19,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 11:28:19,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 11:28:19,376 INFO L87 Difference]: Start difference. First operand has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 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 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2022-02-15 11:28:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:19,798 INFO L93 Difference]: Finished difference Result 16531 states and 61711 transitions. [2022-02-15 11:28:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 11:28:19,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 88 [2022-02-15 11:28:19,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:19,977 INFO L225 Difference]: With dead ends: 16531 [2022-02-15 11:28:19,977 INFO L226 Difference]: Without dead ends: 13993 [2022-02-15 11:28:19,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-02-15 11:28:19,982 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 297 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:19,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 926 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:20,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13993 states. [2022-02-15 11:28:20,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13993 to 9358. [2022-02-15 11:28:20,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9358 states, 9357 states have (on average 3.7627444693812118) internal successors, (35208), 9357 states have internal predecessors, (35208), 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) [2022-02-15 11:28:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9358 states to 9358 states and 35208 transitions. [2022-02-15 11:28:20,886 INFO L78 Accepts]: Start accepts. Automaton has 9358 states and 35208 transitions. Word has length 88 [2022-02-15 11:28:20,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:20,891 INFO L470 AbstractCegarLoop]: Abstraction has 9358 states and 35208 transitions. [2022-02-15 11:28:20,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2022-02-15 11:28:20,892 INFO L276 IsEmpty]: Start isEmpty. Operand 9358 states and 35208 transitions. [2022-02-15 11:28:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:20,921 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:20,921 INFO L514 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] [2022-02-15 11:28:20,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 11:28:20,922 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:20,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1637234185, now seen corresponding path program 1 times [2022-02-15 11:28:20,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:20,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107477656] [2022-02-15 11:28:20,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:20,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:21,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:21,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107477656] [2022-02-15 11:28:21,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107477656] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:21,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:21,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:21,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187427373] [2022-02-15 11:28:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:21,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:21,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:21,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:21,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:21,207 INFO L87 Difference]: Start difference. First operand 9358 states and 35208 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:21,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:21,812 INFO L93 Difference]: Finished difference Result 31067 states and 113011 transitions. [2022-02-15 11:28:21,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 11:28:21,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:21,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:22,032 INFO L225 Difference]: With dead ends: 31067 [2022-02-15 11:28:22,033 INFO L226 Difference]: Without dead ends: 31067 [2022-02-15 11:28:22,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:28:22,037 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 367 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:22,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 475 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:22,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31067 states. [2022-02-15 11:28:22,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31067 to 12850. [2022-02-15 11:28:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12850 states, 12849 states have (on average 3.7403689003035256) internal successors, (48060), 12849 states have internal predecessors, (48060), 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) [2022-02-15 11:28:22,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12850 states to 12850 states and 48060 transitions. [2022-02-15 11:28:22,739 INFO L78 Accepts]: Start accepts. Automaton has 12850 states and 48060 transitions. Word has length 90 [2022-02-15 11:28:22,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:22,741 INFO L470 AbstractCegarLoop]: Abstraction has 12850 states and 48060 transitions. [2022-02-15 11:28:22,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:22,742 INFO L276 IsEmpty]: Start isEmpty. Operand 12850 states and 48060 transitions. [2022-02-15 11:28:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:22,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:22,777 INFO L514 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] [2022-02-15 11:28:22,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 11:28:22,778 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:22,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1275118121, now seen corresponding path program 1 times [2022-02-15 11:28:22,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:22,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474457832] [2022-02-15 11:28:22,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:22,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:22,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:22,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:22,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474457832] [2022-02-15 11:28:22,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474457832] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:22,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:22,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:22,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009821810] [2022-02-15 11:28:22,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:22,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:22,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:22,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:22,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:22,936 INFO L87 Difference]: Start difference. First operand 12850 states and 48060 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:23,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:23,453 INFO L93 Difference]: Finished difference Result 33967 states and 120003 transitions. [2022-02-15 11:28:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 11:28:23,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:23,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:23,770 INFO L225 Difference]: With dead ends: 33967 [2022-02-15 11:28:23,770 INFO L226 Difference]: Without dead ends: 32536 [2022-02-15 11:28:23,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:28:23,785 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 278 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:23,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 646 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:23,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32536 states. [2022-02-15 11:28:24,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32536 to 14810. [2022-02-15 11:28:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14810 states, 14809 states have (on average 3.6470389627928963) internal successors, (54009), 14809 states have internal predecessors, (54009), 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) [2022-02-15 11:28:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14810 states to 14810 states and 54009 transitions. [2022-02-15 11:28:24,467 INFO L78 Accepts]: Start accepts. Automaton has 14810 states and 54009 transitions. Word has length 90 [2022-02-15 11:28:24,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:24,469 INFO L470 AbstractCegarLoop]: Abstraction has 14810 states and 54009 transitions. [2022-02-15 11:28:24,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:24,470 INFO L276 IsEmpty]: Start isEmpty. Operand 14810 states and 54009 transitions. [2022-02-15 11:28:24,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:24,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:24,506 INFO L514 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] [2022-02-15 11:28:24,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 11:28:24,506 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:24,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash 477452055, now seen corresponding path program 1 times [2022-02-15 11:28:24,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:24,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018117784] [2022-02-15 11:28:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:24,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:24,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:24,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:24,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018117784] [2022-02-15 11:28:24,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018117784] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:24,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:24,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:24,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843533432] [2022-02-15 11:28:24,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:24,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:24,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:24,789 INFO L87 Difference]: Start difference. First operand 14810 states and 54009 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:25,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:25,200 INFO L93 Difference]: Finished difference Result 35764 states and 125426 transitions. [2022-02-15 11:28:25,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 11:28:25,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:25,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:25,332 INFO L225 Difference]: With dead ends: 35764 [2022-02-15 11:28:25,333 INFO L226 Difference]: Without dead ends: 35764 [2022-02-15 11:28:25,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:28:25,334 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 272 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:25,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 667 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:25,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35764 states. [2022-02-15 11:28:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35764 to 16054. [2022-02-15 11:28:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16054 states, 16053 states have (on average 3.6431196661060237) internal successors, (58483), 16053 states have internal predecessors, (58483), 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) [2022-02-15 11:28:26,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16054 states to 16054 states and 58483 transitions. [2022-02-15 11:28:26,161 INFO L78 Accepts]: Start accepts. Automaton has 16054 states and 58483 transitions. Word has length 90 [2022-02-15 11:28:26,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:26,161 INFO L470 AbstractCegarLoop]: Abstraction has 16054 states and 58483 transitions. [2022-02-15 11:28:26,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 16054 states and 58483 transitions. [2022-02-15 11:28:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:26,200 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:26,200 INFO L514 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] [2022-02-15 11:28:26,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 11:28:26,201 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1265044215, now seen corresponding path program 1 times [2022-02-15 11:28:26,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:26,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929466666] [2022-02-15 11:28:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:26,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:26,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:26,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929466666] [2022-02-15 11:28:26,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929466666] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:26,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:26,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:26,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411875383] [2022-02-15 11:28:26,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:26,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:26,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:26,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:26,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:26,302 INFO L87 Difference]: Start difference. First operand 16054 states and 58483 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:26,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:26,627 INFO L93 Difference]: Finished difference Result 27536 states and 97127 transitions. [2022-02-15 11:28:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:26,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:26,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:26,708 INFO L225 Difference]: With dead ends: 27536 [2022-02-15 11:28:26,708 INFO L226 Difference]: Without dead ends: 27536 [2022-02-15 11:28:26,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:26,709 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 195 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:26,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 390 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27536 states. [2022-02-15 11:28:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27536 to 16748. [2022-02-15 11:28:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16748 states, 16747 states have (on average 3.6356959455424853) internal successors, (60887), 16747 states have internal predecessors, (60887), 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) [2022-02-15 11:28:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16748 states to 16748 states and 60887 transitions. [2022-02-15 11:28:27,230 INFO L78 Accepts]: Start accepts. Automaton has 16748 states and 60887 transitions. Word has length 90 [2022-02-15 11:28:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:27,230 INFO L470 AbstractCegarLoop]: Abstraction has 16748 states and 60887 transitions. [2022-02-15 11:28:27,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand 16748 states and 60887 transitions. [2022-02-15 11:28:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:27,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:27,268 INFO L514 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] [2022-02-15 11:28:27,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 11:28:27,268 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1319290505, now seen corresponding path program 2 times [2022-02-15 11:28:27,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:27,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117875610] [2022-02-15 11:28:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:27,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:27,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:27,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:27,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117875610] [2022-02-15 11:28:27,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117875610] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:27,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:27,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:27,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985210367] [2022-02-15 11:28:27,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:27,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:27,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:27,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:27,364 INFO L87 Difference]: Start difference. First operand 16748 states and 60887 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:27,928 INFO L93 Difference]: Finished difference Result 36665 states and 127481 transitions. [2022-02-15 11:28:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 11:28:27,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:27,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:28,029 INFO L225 Difference]: With dead ends: 36665 [2022-02-15 11:28:28,029 INFO L226 Difference]: Without dead ends: 36382 [2022-02-15 11:28:28,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:28:28,030 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 294 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:28,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 628 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:28,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36382 states. [2022-02-15 11:28:28,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36382 to 16468. [2022-02-15 11:28:28,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16468 states, 16467 states have (on average 3.6269508714398495) internal successors, (59725), 16467 states have internal predecessors, (59725), 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) [2022-02-15 11:28:28,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16468 states to 16468 states and 59725 transitions. [2022-02-15 11:28:28,707 INFO L78 Accepts]: Start accepts. Automaton has 16468 states and 59725 transitions. Word has length 90 [2022-02-15 11:28:28,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:28,708 INFO L470 AbstractCegarLoop]: Abstraction has 16468 states and 59725 transitions. [2022-02-15 11:28:28,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:28,708 INFO L276 IsEmpty]: Start isEmpty. Operand 16468 states and 59725 transitions. [2022-02-15 11:28:28,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:28,738 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:28,738 INFO L514 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] [2022-02-15 11:28:28,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 11:28:28,739 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:28,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:28,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1777486535, now seen corresponding path program 2 times [2022-02-15 11:28:28,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:28,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625910246] [2022-02-15 11:28:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:28,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:28,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:28,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625910246] [2022-02-15 11:28:28,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625910246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:28,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:28,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:28,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113575312] [2022-02-15 11:28:28,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:28,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:28,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:28,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:28,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:28,815 INFO L87 Difference]: Start difference. First operand 16468 states and 59725 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:29,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:29,014 INFO L93 Difference]: Finished difference Result 26840 states and 93453 transitions. [2022-02-15 11:28:29,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:29,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:29,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:29,252 INFO L225 Difference]: With dead ends: 26840 [2022-02-15 11:28:29,252 INFO L226 Difference]: Without dead ends: 26305 [2022-02-15 11:28:29,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:29,266 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 171 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:29,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 509 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:29,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26305 states. [2022-02-15 11:28:29,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26305 to 15884. [2022-02-15 11:28:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15884 states, 15883 states have (on average 3.609078889378581) internal successors, (57323), 15883 states have internal predecessors, (57323), 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) [2022-02-15 11:28:29,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15884 states to 15884 states and 57323 transitions. [2022-02-15 11:28:29,879 INFO L78 Accepts]: Start accepts. Automaton has 15884 states and 57323 transitions. Word has length 90 [2022-02-15 11:28:29,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:29,880 INFO L470 AbstractCegarLoop]: Abstraction has 15884 states and 57323 transitions. [2022-02-15 11:28:29,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:29,880 INFO L276 IsEmpty]: Start isEmpty. Operand 15884 states and 57323 transitions. [2022-02-15 11:28:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:29,949 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:29,949 INFO L514 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] [2022-02-15 11:28:29,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 11:28:29,949 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:29,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:29,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1447406297, now seen corresponding path program 3 times [2022-02-15 11:28:29,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:29,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831576504] [2022-02-15 11:28:29,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:29,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:30,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:30,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831576504] [2022-02-15 11:28:30,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831576504] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:30,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:30,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:30,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763214900] [2022-02-15 11:28:30,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:30,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:30,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:30,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:30,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:30,060 INFO L87 Difference]: Start difference. First operand 15884 states and 57323 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:30,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:30,398 INFO L93 Difference]: Finished difference Result 35792 states and 123773 transitions. [2022-02-15 11:28:30,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 11:28:30,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:30,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:30,496 INFO L225 Difference]: With dead ends: 35792 [2022-02-15 11:28:30,496 INFO L226 Difference]: Without dead ends: 35358 [2022-02-15 11:28:30,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:28:30,497 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 345 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:30,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 527 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35358 states. [2022-02-15 11:28:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35358 to 15380. [2022-02-15 11:28:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15380 states, 15379 states have (on average 3.62715391117758) internal successors, (55782), 15379 states have internal predecessors, (55782), 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) [2022-02-15 11:28:31,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15380 states to 15380 states and 55782 transitions. [2022-02-15 11:28:31,122 INFO L78 Accepts]: Start accepts. Automaton has 15380 states and 55782 transitions. Word has length 90 [2022-02-15 11:28:31,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:31,122 INFO L470 AbstractCegarLoop]: Abstraction has 15380 states and 55782 transitions. [2022-02-15 11:28:31,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:31,122 INFO L276 IsEmpty]: Start isEmpty. Operand 15380 states and 55782 transitions. [2022-02-15 11:28:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:31,153 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:31,153 INFO L514 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] [2022-02-15 11:28:31,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 11:28:31,154 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:31,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash 820174889, now seen corresponding path program 2 times [2022-02-15 11:28:31,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:31,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940057861] [2022-02-15 11:28:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:31,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:31,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:31,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940057861] [2022-02-15 11:28:31,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940057861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:31,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:31,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:31,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114325303] [2022-02-15 11:28:31,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:31,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:31,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:31,285 INFO L87 Difference]: Start difference. First operand 15380 states and 55782 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:31,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:31,694 INFO L93 Difference]: Finished difference Result 30810 states and 107601 transitions. [2022-02-15 11:28:31,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 11:28:31,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:31,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:31,786 INFO L225 Difference]: With dead ends: 30810 [2022-02-15 11:28:31,786 INFO L226 Difference]: Without dead ends: 30590 [2022-02-15 11:28:31,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:28:31,787 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 310 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:31,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 559 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:31,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30590 states. [2022-02-15 11:28:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30590 to 15411. [2022-02-15 11:28:32,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15411 states, 15410 states have (on average 3.629007138221934) internal successors, (55923), 15410 states have internal predecessors, (55923), 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) [2022-02-15 11:28:32,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15411 states to 15411 states and 55923 transitions. [2022-02-15 11:28:32,359 INFO L78 Accepts]: Start accepts. Automaton has 15411 states and 55923 transitions. Word has length 90 [2022-02-15 11:28:32,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:32,360 INFO L470 AbstractCegarLoop]: Abstraction has 15411 states and 55923 transitions. [2022-02-15 11:28:32,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:32,360 INFO L276 IsEmpty]: Start isEmpty. Operand 15411 states and 55923 transitions. [2022-02-15 11:28:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:32,388 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:32,388 INFO L514 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] [2022-02-15 11:28:32,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 11:28:32,389 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:32,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:32,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1496988455, now seen corresponding path program 3 times [2022-02-15 11:28:32,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:32,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525698188] [2022-02-15 11:28:32,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:32,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:32,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:32,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525698188] [2022-02-15 11:28:32,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525698188] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:32,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:32,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:32,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441772966] [2022-02-15 11:28:32,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:32,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:32,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:32,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:32,448 INFO L87 Difference]: Start difference. First operand 15411 states and 55923 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:32,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:32,660 INFO L93 Difference]: Finished difference Result 30397 states and 106147 transitions. [2022-02-15 11:28:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 11:28:32,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:33,061 INFO L225 Difference]: With dead ends: 30397 [2022-02-15 11:28:33,061 INFO L226 Difference]: Without dead ends: 30397 [2022-02-15 11:28:33,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:33,062 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 254 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:33,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 546 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30397 states. [2022-02-15 11:28:33,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30397 to 15497. [2022-02-15 11:28:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15497 states, 15496 states have (on average 3.628613835828601) internal successors, (56229), 15496 states have internal predecessors, (56229), 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) [2022-02-15 11:28:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15497 states to 15497 states and 56229 transitions. [2022-02-15 11:28:33,536 INFO L78 Accepts]: Start accepts. Automaton has 15497 states and 56229 transitions. Word has length 90 [2022-02-15 11:28:33,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:33,536 INFO L470 AbstractCegarLoop]: Abstraction has 15497 states and 56229 transitions. [2022-02-15 11:28:33,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:33,537 INFO L276 IsEmpty]: Start isEmpty. Operand 15497 states and 56229 transitions. [2022-02-15 11:28:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:33,567 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:33,567 INFO L514 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] [2022-02-15 11:28:33,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 11:28:33,569 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash 964871739, now seen corresponding path program 4 times [2022-02-15 11:28:33,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:33,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960678160] [2022-02-15 11:28:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:33,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:33,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:33,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960678160] [2022-02-15 11:28:33,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960678160] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:33,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:33,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 11:28:33,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088421084] [2022-02-15 11:28:33,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:33,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 11:28:33,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 11:28:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-15 11:28:33,814 INFO L87 Difference]: Start difference. First operand 15497 states and 56229 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-02-15 11:28:33,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:33,990 INFO L93 Difference]: Finished difference Result 29652 states and 102345 transitions. [2022-02-15 11:28:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 11:28:33,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:33,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:34,064 INFO L225 Difference]: With dead ends: 29652 [2022-02-15 11:28:34,065 INFO L226 Difference]: Without dead ends: 28185 [2022-02-15 11:28:34,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-15 11:28:34,065 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 116 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:34,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 342 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:34,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28185 states. [2022-02-15 11:28:34,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28185 to 15227. [2022-02-15 11:28:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15227 states, 15226 states have (on average 3.612898988572179) internal successors, (55010), 15226 states have internal predecessors, (55010), 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) [2022-02-15 11:28:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15227 states to 15227 states and 55010 transitions. [2022-02-15 11:28:34,537 INFO L78 Accepts]: Start accepts. Automaton has 15227 states and 55010 transitions. Word has length 90 [2022-02-15 11:28:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:34,537 INFO L470 AbstractCegarLoop]: Abstraction has 15227 states and 55010 transitions. [2022-02-15 11:28:34,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-02-15 11:28:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 15227 states and 55010 transitions. [2022-02-15 11:28:34,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:34,566 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:34,567 INFO L514 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] [2022-02-15 11:28:34,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 11:28:34,567 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1814195023, now seen corresponding path program 2 times [2022-02-15 11:28:34,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:34,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789354429] [2022-02-15 11:28:34,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:34,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:34,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:34,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:34,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789354429] [2022-02-15 11:28:34,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789354429] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:34,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:34,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:34,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703106166] [2022-02-15 11:28:34,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:34,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:34,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:34,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:34,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:34,656 INFO L87 Difference]: Start difference. First operand 15227 states and 55010 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:34,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:34,831 INFO L93 Difference]: Finished difference Result 27663 states and 96892 transitions. [2022-02-15 11:28:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:34,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:34,902 INFO L225 Difference]: With dead ends: 27663 [2022-02-15 11:28:34,902 INFO L226 Difference]: Without dead ends: 27663 [2022-02-15 11:28:34,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:34,902 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 152 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:34,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 437 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27663 states. [2022-02-15 11:28:35,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27663 to 15479. [2022-02-15 11:28:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15479 states, 15478 states have (on average 3.6146142912520998) internal successors, (55947), 15478 states have internal predecessors, (55947), 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) [2022-02-15 11:28:35,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15479 states to 15479 states and 55947 transitions. [2022-02-15 11:28:35,389 INFO L78 Accepts]: Start accepts. Automaton has 15479 states and 55947 transitions. Word has length 90 [2022-02-15 11:28:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:35,389 INFO L470 AbstractCegarLoop]: Abstraction has 15479 states and 55947 transitions. [2022-02-15 11:28:35,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 15479 states and 55947 transitions. [2022-02-15 11:28:35,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:35,417 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:35,418 INFO L514 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] [2022-02-15 11:28:35,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 11:28:35,418 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:35,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:35,418 INFO L85 PathProgramCache]: Analyzing trace with hash 236788975, now seen corresponding path program 5 times [2022-02-15 11:28:35,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:35,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290486538] [2022-02-15 11:28:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:35,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:35,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:35,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290486538] [2022-02-15 11:28:35,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290486538] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:35,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:35,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:35,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836358538] [2022-02-15 11:28:35,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:35,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:35,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:35,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:35,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:35,499 INFO L87 Difference]: Start difference. First operand 15479 states and 55947 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:35,826 INFO L93 Difference]: Finished difference Result 27887 states and 97672 transitions. [2022-02-15 11:28:35,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:35,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:35,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:35,901 INFO L225 Difference]: With dead ends: 27887 [2022-02-15 11:28:35,901 INFO L226 Difference]: Without dead ends: 27887 [2022-02-15 11:28:35,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:35,902 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 147 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:35,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 443 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:35,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27887 states. [2022-02-15 11:28:36,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27887 to 15703. [2022-02-15 11:28:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15703 states, 15702 states have (on average 3.6127244936950706) internal successors, (56727), 15702 states have internal predecessors, (56727), 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) [2022-02-15 11:28:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15703 states to 15703 states and 56727 transitions. [2022-02-15 11:28:36,496 INFO L78 Accepts]: Start accepts. Automaton has 15703 states and 56727 transitions. Word has length 90 [2022-02-15 11:28:36,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:36,496 INFO L470 AbstractCegarLoop]: Abstraction has 15703 states and 56727 transitions. [2022-02-15 11:28:36,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:36,496 INFO L276 IsEmpty]: Start isEmpty. Operand 15703 states and 56727 transitions. [2022-02-15 11:28:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:36,524 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:36,524 INFO L514 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] [2022-02-15 11:28:36,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 11:28:36,524 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:36,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:36,525 INFO L85 PathProgramCache]: Analyzing trace with hash -668830069, now seen corresponding path program 3 times [2022-02-15 11:28:36,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:36,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501084191] [2022-02-15 11:28:36,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:36,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:36,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:36,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:36,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501084191] [2022-02-15 11:28:36,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501084191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:36,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:36,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:36,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316081993] [2022-02-15 11:28:36,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:36,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:36,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:36,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:36,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:36,596 INFO L87 Difference]: Start difference. First operand 15703 states and 56727 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:36,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:36,759 INFO L93 Difference]: Finished difference Result 27169 states and 94918 transitions. [2022-02-15 11:28:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:36,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:36,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:36,826 INFO L225 Difference]: With dead ends: 27169 [2022-02-15 11:28:36,826 INFO L226 Difference]: Without dead ends: 27169 [2022-02-15 11:28:36,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:36,827 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 229 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:36,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 378 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 11:28:36,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27169 states. [2022-02-15 11:28:37,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27169 to 15703. [2022-02-15 11:28:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15703 states, 15702 states have (on average 3.6127244936950706) internal successors, (56727), 15702 states have internal predecessors, (56727), 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) [2022-02-15 11:28:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15703 states to 15703 states and 56727 transitions. [2022-02-15 11:28:37,373 INFO L78 Accepts]: Start accepts. Automaton has 15703 states and 56727 transitions. Word has length 90 [2022-02-15 11:28:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:37,373 INFO L470 AbstractCegarLoop]: Abstraction has 15703 states and 56727 transitions. [2022-02-15 11:28:37,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 15703 states and 56727 transitions. [2022-02-15 11:28:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:37,401 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:37,401 INFO L514 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] [2022-02-15 11:28:37,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 11:28:37,401 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2082142827, now seen corresponding path program 6 times [2022-02-15 11:28:37,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:37,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425211904] [2022-02-15 11:28:37,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:37,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:37,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:37,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425211904] [2022-02-15 11:28:37,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425211904] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:37,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:37,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:37,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010052132] [2022-02-15 11:28:37,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:37,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:37,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:37,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:37,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:37,478 INFO L87 Difference]: Start difference. First operand 15703 states and 56727 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:37,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:37,890 INFO L93 Difference]: Finished difference Result 33400 states and 116312 transitions. [2022-02-15 11:28:37,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 11:28:37,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:37,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:38,038 INFO L225 Difference]: With dead ends: 33400 [2022-02-15 11:28:38,039 INFO L226 Difference]: Without dead ends: 33180 [2022-02-15 11:28:38,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:38,039 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 272 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:38,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 530 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:28:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33180 states. [2022-02-15 11:28:38,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33180 to 15703. [2022-02-15 11:28:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15703 states, 15702 states have (on average 3.6109412813654314) internal successors, (56699), 15702 states have internal predecessors, (56699), 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) [2022-02-15 11:28:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15703 states to 15703 states and 56699 transitions. [2022-02-15 11:28:38,679 INFO L78 Accepts]: Start accepts. Automaton has 15703 states and 56699 transitions. Word has length 90 [2022-02-15 11:28:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:38,679 INFO L470 AbstractCegarLoop]: Abstraction has 15703 states and 56699 transitions. [2022-02-15 11:28:38,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 15703 states and 56699 transitions. [2022-02-15 11:28:38,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:38,733 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:38,733 INFO L514 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] [2022-02-15 11:28:38,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 11:28:38,733 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:38,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:38,734 INFO L85 PathProgramCache]: Analyzing trace with hash -236270007, now seen corresponding path program 4 times [2022-02-15 11:28:38,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:38,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388269303] [2022-02-15 11:28:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:38,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:38,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:38,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388269303] [2022-02-15 11:28:38,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388269303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:38,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:38,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:38,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785712184] [2022-02-15 11:28:38,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:38,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:38,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:38,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:38,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:38,792 INFO L87 Difference]: Start difference. First operand 15703 states and 56699 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:39,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:39,033 INFO L93 Difference]: Finished difference Result 28495 states and 98916 transitions. [2022-02-15 11:28:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:39,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:39,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:39,107 INFO L225 Difference]: With dead ends: 28495 [2022-02-15 11:28:39,107 INFO L226 Difference]: Without dead ends: 27828 [2022-02-15 11:28:39,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:39,109 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 185 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:39,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 538 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:39,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27828 states. [2022-02-15 11:28:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27828 to 15795. [2022-02-15 11:28:39,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15795 states, 15794 states have (on average 3.6085222236292265) internal successors, (56993), 15794 states have internal predecessors, (56993), 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) [2022-02-15 11:28:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 56993 transitions. [2022-02-15 11:28:39,604 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 56993 transitions. Word has length 90 [2022-02-15 11:28:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:39,604 INFO L470 AbstractCegarLoop]: Abstraction has 15795 states and 56993 transitions. [2022-02-15 11:28:39,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:39,604 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 56993 transitions. [2022-02-15 11:28:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:39,633 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:39,633 INFO L514 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] [2022-02-15 11:28:39,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 11:28:39,634 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:39,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:39,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1771180783, now seen corresponding path program 5 times [2022-02-15 11:28:39,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:39,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156693411] [2022-02-15 11:28:39,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:39,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:39,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:39,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156693411] [2022-02-15 11:28:39,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156693411] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:39,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:39,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:39,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027541525] [2022-02-15 11:28:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:39,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:39,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:39,723 INFO L87 Difference]: Start difference. First operand 15795 states and 56993 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:39,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:39,924 INFO L93 Difference]: Finished difference Result 23921 states and 83964 transitions. [2022-02-15 11:28:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:39,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:39,980 INFO L225 Difference]: With dead ends: 23921 [2022-02-15 11:28:39,981 INFO L226 Difference]: Without dead ends: 23921 [2022-02-15 11:28:39,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:39,982 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 196 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:39,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 514 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:40,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23921 states. [2022-02-15 11:28:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23921 to 15931. [2022-02-15 11:28:40,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15931 states, 15930 states have (on average 3.6084745762711865) internal successors, (57483), 15930 states have internal predecessors, (57483), 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) [2022-02-15 11:28:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15931 states to 15931 states and 57483 transitions. [2022-02-15 11:28:40,484 INFO L78 Accepts]: Start accepts. Automaton has 15931 states and 57483 transitions. Word has length 90 [2022-02-15 11:28:40,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:40,484 INFO L470 AbstractCegarLoop]: Abstraction has 15931 states and 57483 transitions. [2022-02-15 11:28:40,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 15931 states and 57483 transitions. [2022-02-15 11:28:40,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:40,514 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:40,514 INFO L514 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] [2022-02-15 11:28:40,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 11:28:40,514 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:40,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:40,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1293091945, now seen corresponding path program 6 times [2022-02-15 11:28:40,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:40,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964168670] [2022-02-15 11:28:40,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:40,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:40,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:40,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964168670] [2022-02-15 11:28:40,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964168670] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:40,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:40,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:40,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919833942] [2022-02-15 11:28:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:40,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:40,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:40,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:40,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:40,574 INFO L87 Difference]: Start difference. First operand 15931 states and 57483 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:40,810 INFO L93 Difference]: Finished difference Result 27484 states and 95304 transitions. [2022-02-15 11:28:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 11:28:40,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:40,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:41,082 INFO L225 Difference]: With dead ends: 27484 [2022-02-15 11:28:41,083 INFO L226 Difference]: Without dead ends: 27484 [2022-02-15 11:28:41,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:28:41,083 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 265 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:41,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 576 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27484 states. [2022-02-15 11:28:41,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27484 to 15216. [2022-02-15 11:28:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15216 states, 15215 states have (on average 3.606112389089714) internal successors, (54867), 15215 states have internal predecessors, (54867), 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) [2022-02-15 11:28:41,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15216 states to 15216 states and 54867 transitions. [2022-02-15 11:28:41,449 INFO L78 Accepts]: Start accepts. Automaton has 15216 states and 54867 transitions. Word has length 90 [2022-02-15 11:28:41,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:41,450 INFO L470 AbstractCegarLoop]: Abstraction has 15216 states and 54867 transitions. [2022-02-15 11:28:41,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:41,450 INFO L276 IsEmpty]: Start isEmpty. Operand 15216 states and 54867 transitions. [2022-02-15 11:28:41,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:41,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:41,481 INFO L514 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] [2022-02-15 11:28:41,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 11:28:41,481 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:41,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:41,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1876444117, now seen corresponding path program 3 times [2022-02-15 11:28:41,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:41,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975097372] [2022-02-15 11:28:41,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:41,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:41,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:41,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975097372] [2022-02-15 11:28:41,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975097372] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:41,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:41,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:41,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546879904] [2022-02-15 11:28:41,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:41,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:41,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:41,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:41,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:41,540 INFO L87 Difference]: Start difference. First operand 15216 states and 54867 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:41,947 INFO L93 Difference]: Finished difference Result 27556 states and 95406 transitions. [2022-02-15 11:28:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 11:28:41,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:42,024 INFO L225 Difference]: With dead ends: 27556 [2022-02-15 11:28:42,024 INFO L226 Difference]: Without dead ends: 27556 [2022-02-15 11:28:42,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:28:42,026 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 256 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:42,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 572 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:28:42,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27556 states. [2022-02-15 11:28:42,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27556 to 15212. [2022-02-15 11:28:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15212 states, 15211 states have (on average 3.597659588455723) internal successors, (54724), 15211 states have internal predecessors, (54724), 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) [2022-02-15 11:28:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15212 states to 15212 states and 54724 transitions. [2022-02-15 11:28:42,534 INFO L78 Accepts]: Start accepts. Automaton has 15212 states and 54724 transitions. Word has length 90 [2022-02-15 11:28:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:42,534 INFO L470 AbstractCegarLoop]: Abstraction has 15212 states and 54724 transitions. [2022-02-15 11:28:42,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:42,534 INFO L276 IsEmpty]: Start isEmpty. Operand 15212 states and 54724 transitions. [2022-02-15 11:28:42,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:42,561 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:42,561 INFO L514 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] [2022-02-15 11:28:42,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 11:28:42,561 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:42,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash -401241399, now seen corresponding path program 7 times [2022-02-15 11:28:42,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:42,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519983895] [2022-02-15 11:28:42,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:42,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:42,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:42,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519983895] [2022-02-15 11:28:42,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519983895] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:42,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:42,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:42,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208559568] [2022-02-15 11:28:42,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:42,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:42,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:42,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:42,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:42,620 INFO L87 Difference]: Start difference. First operand 15212 states and 54724 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:42,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:42,826 INFO L93 Difference]: Finished difference Result 26742 states and 92903 transitions. [2022-02-15 11:28:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 11:28:42,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:42,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:42,893 INFO L225 Difference]: With dead ends: 26742 [2022-02-15 11:28:42,894 INFO L226 Difference]: Without dead ends: 26742 [2022-02-15 11:28:42,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:42,894 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 300 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:42,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 472 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26742 states. [2022-02-15 11:28:43,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26742 to 15148. [2022-02-15 11:28:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15148 states, 15147 states have (on average 3.601241169868621) internal successors, (54548), 15147 states have internal predecessors, (54548), 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) [2022-02-15 11:28:43,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15148 states to 15148 states and 54548 transitions. [2022-02-15 11:28:43,357 INFO L78 Accepts]: Start accepts. Automaton has 15148 states and 54548 transitions. Word has length 90 [2022-02-15 11:28:43,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:43,357 INFO L470 AbstractCegarLoop]: Abstraction has 15148 states and 54548 transitions. [2022-02-15 11:28:43,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:43,357 INFO L276 IsEmpty]: Start isEmpty. Operand 15148 states and 54548 transitions. [2022-02-15 11:28:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:43,384 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:43,384 INFO L514 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] [2022-02-15 11:28:43,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 11:28:43,384 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:43,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:43,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1720416441, now seen corresponding path program 4 times [2022-02-15 11:28:43,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:43,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400492822] [2022-02-15 11:28:43,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:43,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:43,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:43,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400492822] [2022-02-15 11:28:43,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400492822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:43,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:43,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:43,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761350691] [2022-02-15 11:28:43,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:43,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:43,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:43,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:43,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:43,437 INFO L87 Difference]: Start difference. First operand 15148 states and 54548 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:43,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:43,701 INFO L93 Difference]: Finished difference Result 28157 states and 96841 transitions. [2022-02-15 11:28:43,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 11:28:43,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:43,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:43,776 INFO L225 Difference]: With dead ends: 28157 [2022-02-15 11:28:43,776 INFO L226 Difference]: Without dead ends: 27531 [2022-02-15 11:28:43,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:43,777 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 272 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:43,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 474 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:43,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27531 states. [2022-02-15 11:28:44,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27531 to 15004. [2022-02-15 11:28:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15004 states, 15003 states have (on average 3.5899486769312805) internal successors, (53860), 15003 states have internal predecessors, (53860), 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) [2022-02-15 11:28:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15004 states to 15004 states and 53860 transitions. [2022-02-15 11:28:44,342 INFO L78 Accepts]: Start accepts. Automaton has 15004 states and 53860 transitions. Word has length 90 [2022-02-15 11:28:44,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:44,342 INFO L470 AbstractCegarLoop]: Abstraction has 15004 states and 53860 transitions. [2022-02-15 11:28:44,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:44,343 INFO L276 IsEmpty]: Start isEmpty. Operand 15004 states and 53860 transitions. [2022-02-15 11:28:44,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:44,372 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:44,372 INFO L514 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] [2022-02-15 11:28:44,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 11:28:44,372 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:44,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:44,372 INFO L85 PathProgramCache]: Analyzing trace with hash 525140649, now seen corresponding path program 5 times [2022-02-15 11:28:44,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:44,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390111625] [2022-02-15 11:28:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:44,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:44,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:44,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390111625] [2022-02-15 11:28:44,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390111625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:44,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:44,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:44,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000322830] [2022-02-15 11:28:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:44,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:44,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:44,426 INFO L87 Difference]: Start difference. First operand 15004 states and 53860 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:44,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:44,832 INFO L93 Difference]: Finished difference Result 27705 states and 95498 transitions. [2022-02-15 11:28:44,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:44,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:44,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:44,962 INFO L225 Difference]: With dead ends: 27705 [2022-02-15 11:28:44,962 INFO L226 Difference]: Without dead ends: 27038 [2022-02-15 11:28:44,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:44,963 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 195 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:44,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 506 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:45,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27038 states. [2022-02-15 11:28:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27038 to 14247. [2022-02-15 11:28:45,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14247 states, 14246 states have (on average 3.5905517338200195) internal successors, (51151), 14246 states have internal predecessors, (51151), 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) [2022-02-15 11:28:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14247 states to 14247 states and 51151 transitions. [2022-02-15 11:28:45,326 INFO L78 Accepts]: Start accepts. Automaton has 14247 states and 51151 transitions. Word has length 90 [2022-02-15 11:28:45,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:45,326 INFO L470 AbstractCegarLoop]: Abstraction has 14247 states and 51151 transitions. [2022-02-15 11:28:45,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 14247 states and 51151 transitions. [2022-02-15 11:28:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:45,351 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:45,351 INFO L514 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] [2022-02-15 11:28:45,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 11:28:45,352 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:45,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:45,352 INFO L85 PathProgramCache]: Analyzing trace with hash 131179825, now seen corresponding path program 6 times [2022-02-15 11:28:45,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:45,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410766487] [2022-02-15 11:28:45,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:45,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:45,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:45,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:45,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410766487] [2022-02-15 11:28:45,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410766487] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:45,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:45,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:45,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46477875] [2022-02-15 11:28:45,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:45,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:45,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:45,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:45,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:45,398 INFO L87 Difference]: Start difference. First operand 14247 states and 51151 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:45,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:45,734 INFO L93 Difference]: Finished difference Result 25461 states and 88204 transitions. [2022-02-15 11:28:45,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:45,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:45,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:45,799 INFO L225 Difference]: With dead ends: 25461 [2022-02-15 11:28:45,799 INFO L226 Difference]: Without dead ends: 25461 [2022-02-15 11:28:45,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:45,800 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 164 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:45,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 529 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25461 states. [2022-02-15 11:28:46,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25461 to 14435. [2022-02-15 11:28:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14435 states, 14434 states have (on average 3.594291256754884) internal successors, (51880), 14434 states have internal predecessors, (51880), 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) [2022-02-15 11:28:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14435 states to 14435 states and 51880 transitions. [2022-02-15 11:28:46,176 INFO L78 Accepts]: Start accepts. Automaton has 14435 states and 51880 transitions. Word has length 90 [2022-02-15 11:28:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:46,176 INFO L470 AbstractCegarLoop]: Abstraction has 14435 states and 51880 transitions. [2022-02-15 11:28:46,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 14435 states and 51880 transitions. [2022-02-15 11:28:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:46,361 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:46,361 INFO L514 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] [2022-02-15 11:28:46,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 11:28:46,361 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:46,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:46,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1461052049, now seen corresponding path program 8 times [2022-02-15 11:28:46,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:46,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800005071] [2022-02-15 11:28:46,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:46,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:46,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:46,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:46,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800005071] [2022-02-15 11:28:46,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800005071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:46,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:46,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:46,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523008343] [2022-02-15 11:28:46,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:46,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:46,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:46,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:46,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:46,433 INFO L87 Difference]: Start difference. First operand 14435 states and 51880 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:46,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:46,599 INFO L93 Difference]: Finished difference Result 22654 states and 79899 transitions. [2022-02-15 11:28:46,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:46,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:46,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:46,664 INFO L225 Difference]: With dead ends: 22654 [2022-02-15 11:28:46,664 INFO L226 Difference]: Without dead ends: 22654 [2022-02-15 11:28:46,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:46,665 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 240 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:46,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 386 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:46,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22654 states. [2022-02-15 11:28:46,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22654 to 14519. [2022-02-15 11:28:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14519 states, 14518 states have (on average 3.604008816641411) internal successors, (52323), 14518 states have internal predecessors, (52323), 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) [2022-02-15 11:28:47,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14519 states to 14519 states and 52323 transitions. [2022-02-15 11:28:47,168 INFO L78 Accepts]: Start accepts. Automaton has 14519 states and 52323 transitions. Word has length 90 [2022-02-15 11:28:47,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:47,169 INFO L470 AbstractCegarLoop]: Abstraction has 14519 states and 52323 transitions. [2022-02-15 11:28:47,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:47,169 INFO L276 IsEmpty]: Start isEmpty. Operand 14519 states and 52323 transitions. [2022-02-15 11:28:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:47,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:47,196 INFO L514 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] [2022-02-15 11:28:47,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 11:28:47,196 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:47,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:47,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1967540401, now seen corresponding path program 9 times [2022-02-15 11:28:47,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:47,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44787717] [2022-02-15 11:28:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:47,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:47,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:47,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:47,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44787717] [2022-02-15 11:28:47,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44787717] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:47,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:47,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:47,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511085105] [2022-02-15 11:28:47,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:47,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:47,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:47,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:47,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:47,281 INFO L87 Difference]: Start difference. First operand 14519 states and 52323 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:47,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:47,468 INFO L93 Difference]: Finished difference Result 27082 states and 94221 transitions. [2022-02-15 11:28:47,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:47,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:47,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:47,546 INFO L225 Difference]: With dead ends: 27082 [2022-02-15 11:28:47,546 INFO L226 Difference]: Without dead ends: 27082 [2022-02-15 11:28:47,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:47,546 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 242 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:47,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 400 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27082 states. [2022-02-15 11:28:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27082 to 14523. [2022-02-15 11:28:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14523 states, 14522 states have (on average 3.6040490290593583) internal successors, (52338), 14522 states have internal predecessors, (52338), 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) [2022-02-15 11:28:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14523 states to 14523 states and 52338 transitions. [2022-02-15 11:28:48,016 INFO L78 Accepts]: Start accepts. Automaton has 14523 states and 52338 transitions. Word has length 90 [2022-02-15 11:28:48,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:48,017 INFO L470 AbstractCegarLoop]: Abstraction has 14523 states and 52338 transitions. [2022-02-15 11:28:48,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:48,017 INFO L276 IsEmpty]: Start isEmpty. Operand 14523 states and 52338 transitions. [2022-02-15 11:28:48,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:48,043 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:48,043 INFO L514 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] [2022-02-15 11:28:48,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 11:28:48,043 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:48,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:48,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1299810223, now seen corresponding path program 7 times [2022-02-15 11:28:48,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:48,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667411518] [2022-02-15 11:28:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:48,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:48,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:48,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667411518] [2022-02-15 11:28:48,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667411518] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:48,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:48,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:48,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811923124] [2022-02-15 11:28:48,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:48,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:48,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:48,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:48,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:48,098 INFO L87 Difference]: Start difference. First operand 14523 states and 52338 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:48,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:48,268 INFO L93 Difference]: Finished difference Result 27897 states and 96368 transitions. [2022-02-15 11:28:48,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:48,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:48,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:48,338 INFO L225 Difference]: With dead ends: 27897 [2022-02-15 11:28:48,338 INFO L226 Difference]: Without dead ends: 26659 [2022-02-15 11:28:48,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:48,339 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 203 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:48,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 392 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:48,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26659 states. [2022-02-15 11:28:48,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26659 to 14302. [2022-02-15 11:28:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14302 states, 14301 states have (on average 3.5902384448639957) internal successors, (51344), 14301 states have internal predecessors, (51344), 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) [2022-02-15 11:28:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14302 states to 14302 states and 51344 transitions. [2022-02-15 11:28:48,856 INFO L78 Accepts]: Start accepts. Automaton has 14302 states and 51344 transitions. Word has length 90 [2022-02-15 11:28:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:48,856 INFO L470 AbstractCegarLoop]: Abstraction has 14302 states and 51344 transitions. [2022-02-15 11:28:48,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 14302 states and 51344 transitions. [2022-02-15 11:28:48,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:48,882 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:48,882 INFO L514 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] [2022-02-15 11:28:48,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 11:28:48,884 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:48,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:48,884 INFO L85 PathProgramCache]: Analyzing trace with hash 577965007, now seen corresponding path program 8 times [2022-02-15 11:28:48,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:48,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533073871] [2022-02-15 11:28:48,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:48,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:48,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:48,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533073871] [2022-02-15 11:28:48,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533073871] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:48,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:48,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:48,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721064834] [2022-02-15 11:28:48,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:48,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:48,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:48,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:48,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:48,989 INFO L87 Difference]: Start difference. First operand 14302 states and 51344 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:49,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:49,159 INFO L93 Difference]: Finished difference Result 26451 states and 91611 transitions. [2022-02-15 11:28:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:49,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:49,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:49,224 INFO L225 Difference]: With dead ends: 26451 [2022-02-15 11:28:49,224 INFO L226 Difference]: Without dead ends: 26451 [2022-02-15 11:28:49,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:49,225 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 166 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:49,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 536 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26451 states. [2022-02-15 11:28:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26451 to 14358. [2022-02-15 11:28:49,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14358 states, 14357 states have (on average 3.59810545378561) internal successors, (51658), 14357 states have internal predecessors, (51658), 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) [2022-02-15 11:28:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14358 states to 14358 states and 51658 transitions. [2022-02-15 11:28:49,687 INFO L78 Accepts]: Start accepts. Automaton has 14358 states and 51658 transitions. Word has length 90 [2022-02-15 11:28:49,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:49,687 INFO L470 AbstractCegarLoop]: Abstraction has 14358 states and 51658 transitions. [2022-02-15 11:28:49,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:49,688 INFO L276 IsEmpty]: Start isEmpty. Operand 14358 states and 51658 transitions. [2022-02-15 11:28:49,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:49,714 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:49,714 INFO L514 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] [2022-02-15 11:28:49,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 11:28:49,714 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:49,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:49,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1342608609, now seen corresponding path program 10 times [2022-02-15 11:28:49,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:49,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169470578] [2022-02-15 11:28:49,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:49,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:49,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:49,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169470578] [2022-02-15 11:28:49,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169470578] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:49,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:49,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:49,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323040568] [2022-02-15 11:28:49,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:49,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:49,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:49,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:49,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:49,789 INFO L87 Difference]: Start difference. First operand 14358 states and 51658 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:50,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:50,117 INFO L93 Difference]: Finished difference Result 25723 states and 89016 transitions. [2022-02-15 11:28:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:50,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:50,202 INFO L225 Difference]: With dead ends: 25723 [2022-02-15 11:28:50,202 INFO L226 Difference]: Without dead ends: 25723 [2022-02-15 11:28:50,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:50,202 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 225 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:50,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 471 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:50,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25723 states. [2022-02-15 11:28:50,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25723 to 14018. [2022-02-15 11:28:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14018 states, 14017 states have (on average 3.571877006492117) internal successors, (50067), 14017 states have internal predecessors, (50067), 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) [2022-02-15 11:28:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14018 states to 14018 states and 50067 transitions. [2022-02-15 11:28:50,567 INFO L78 Accepts]: Start accepts. Automaton has 14018 states and 50067 transitions. Word has length 90 [2022-02-15 11:28:50,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:50,567 INFO L470 AbstractCegarLoop]: Abstraction has 14018 states and 50067 transitions. [2022-02-15 11:28:50,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 14018 states and 50067 transitions. [2022-02-15 11:28:50,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:50,594 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:50,594 INFO L514 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] [2022-02-15 11:28:50,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 11:28:50,594 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:50,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:50,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1849096961, now seen corresponding path program 11 times [2022-02-15 11:28:50,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:50,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827472648] [2022-02-15 11:28:50,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:50,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:50,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:50,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827472648] [2022-02-15 11:28:50,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827472648] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:50,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:50,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:50,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96317939] [2022-02-15 11:28:50,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:50,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:50,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:50,645 INFO L87 Difference]: Start difference. First operand 14018 states and 50067 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:50,942 INFO L93 Difference]: Finished difference Result 28379 states and 96765 transitions. [2022-02-15 11:28:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:50,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:51,025 INFO L225 Difference]: With dead ends: 28379 [2022-02-15 11:28:51,025 INFO L226 Difference]: Without dead ends: 27781 [2022-02-15 11:28:51,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:51,025 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 220 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:51,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 435 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27781 states. [2022-02-15 11:28:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27781 to 13805. [2022-02-15 11:28:51,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13805 states, 13804 states have (on average 3.5538974210373806) internal successors, (49058), 13804 states have internal predecessors, (49058), 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) [2022-02-15 11:28:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13805 states to 13805 states and 49058 transitions. [2022-02-15 11:28:51,400 INFO L78 Accepts]: Start accepts. Automaton has 13805 states and 49058 transitions. Word has length 90 [2022-02-15 11:28:51,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:51,401 INFO L470 AbstractCegarLoop]: Abstraction has 13805 states and 49058 transitions. [2022-02-15 11:28:51,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 13805 states and 49058 transitions. [2022-02-15 11:28:51,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:51,427 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:51,427 INFO L514 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] [2022-02-15 11:28:51,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 11:28:51,427 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:51,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:51,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1418253663, now seen corresponding path program 9 times [2022-02-15 11:28:51,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:51,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153870957] [2022-02-15 11:28:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:51,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:51,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:51,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153870957] [2022-02-15 11:28:51,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153870957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:51,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:51,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:51,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241015897] [2022-02-15 11:28:51,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:51,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:51,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:51,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:51,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:51,603 INFO L87 Difference]: Start difference. First operand 13805 states and 49058 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:51,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:51,759 INFO L93 Difference]: Finished difference Result 25180 states and 86483 transitions. [2022-02-15 11:28:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:51,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:51,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:51,819 INFO L225 Difference]: With dead ends: 25180 [2022-02-15 11:28:51,820 INFO L226 Difference]: Without dead ends: 24963 [2022-02-15 11:28:51,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:51,820 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 200 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:51,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 475 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:51,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24963 states. [2022-02-15 11:28:52,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24963 to 13801. [2022-02-15 11:28:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13801 states, 13800 states have (on average 3.5518115942028987) internal successors, (49015), 13800 states have internal predecessors, (49015), 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) [2022-02-15 11:28:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13801 states to 13801 states and 49015 transitions. [2022-02-15 11:28:52,148 INFO L78 Accepts]: Start accepts. Automaton has 13801 states and 49015 transitions. Word has length 90 [2022-02-15 11:28:52,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:52,148 INFO L470 AbstractCegarLoop]: Abstraction has 13801 states and 49015 transitions. [2022-02-15 11:28:52,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:52,148 INFO L276 IsEmpty]: Start isEmpty. Operand 13801 states and 49015 transitions. [2022-02-15 11:28:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:52,219 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:52,219 INFO L514 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] [2022-02-15 11:28:52,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 11:28:52,219 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:52,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:52,220 INFO L85 PathProgramCache]: Analyzing trace with hash 459521567, now seen corresponding path program 10 times [2022-02-15 11:28:52,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:52,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803251692] [2022-02-15 11:28:52,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:52,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:52,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:52,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803251692] [2022-02-15 11:28:52,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803251692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:52,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:52,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:52,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762389211] [2022-02-15 11:28:52,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:52,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:52,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:52,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:52,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:52,283 INFO L87 Difference]: Start difference. First operand 13801 states and 49015 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:52,456 INFO L93 Difference]: Finished difference Result 24715 states and 84636 transitions. [2022-02-15 11:28:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:52,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:52,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:52,520 INFO L225 Difference]: With dead ends: 24715 [2022-02-15 11:28:52,520 INFO L226 Difference]: Without dead ends: 24715 [2022-02-15 11:28:52,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:52,521 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 210 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:52,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 394 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:52,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24715 states. [2022-02-15 11:28:52,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24715 to 13433. [2022-02-15 11:28:52,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13433 states, 13432 states have (on average 3.523451459201906) internal successors, (47327), 13432 states have internal predecessors, (47327), 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) [2022-02-15 11:28:52,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13433 states to 13433 states and 47327 transitions. [2022-02-15 11:28:52,872 INFO L78 Accepts]: Start accepts. Automaton has 13433 states and 47327 transitions. Word has length 90 [2022-02-15 11:28:52,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:52,872 INFO L470 AbstractCegarLoop]: Abstraction has 13433 states and 47327 transitions. [2022-02-15 11:28:52,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:52,873 INFO L276 IsEmpty]: Start isEmpty. Operand 13433 states and 47327 transitions. [2022-02-15 11:28:52,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:52,898 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:52,898 INFO L514 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] [2022-02-15 11:28:52,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 11:28:52,899 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:52,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:52,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1473414877, now seen corresponding path program 12 times [2022-02-15 11:28:52,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:52,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050733601] [2022-02-15 11:28:52,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:52,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:52,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:52,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050733601] [2022-02-15 11:28:52,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050733601] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:52,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:52,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:52,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970607736] [2022-02-15 11:28:52,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:52,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:52,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:52,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:52,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:52,938 INFO L87 Difference]: Start difference. First operand 13433 states and 47327 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:53,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:53,135 INFO L93 Difference]: Finished difference Result 25019 states and 84955 transitions. [2022-02-15 11:28:53,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 11:28:53,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:53,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:53,200 INFO L225 Difference]: With dead ends: 25019 [2022-02-15 11:28:53,201 INFO L226 Difference]: Without dead ends: 24585 [2022-02-15 11:28:53,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:53,202 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 255 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:53,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 571 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24585 states. [2022-02-15 11:28:53,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24585 to 13393. [2022-02-15 11:28:53,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13393 states, 13392 states have (on average 3.520982676224612) internal successors, (47153), 13392 states have internal predecessors, (47153), 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) [2022-02-15 11:28:53,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13393 states to 13393 states and 47153 transitions. [2022-02-15 11:28:53,544 INFO L78 Accepts]: Start accepts. Automaton has 13393 states and 47153 transitions. Word has length 90 [2022-02-15 11:28:53,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:53,545 INFO L470 AbstractCegarLoop]: Abstraction has 13393 states and 47153 transitions. [2022-02-15 11:28:53,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:53,545 INFO L276 IsEmpty]: Start isEmpty. Operand 13393 states and 47153 transitions. [2022-02-15 11:28:53,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:53,568 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:53,568 INFO L514 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] [2022-02-15 11:28:53,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 11:28:53,568 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:53,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:53,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1491200925, now seen corresponding path program 4 times [2022-02-15 11:28:53,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:53,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554616967] [2022-02-15 11:28:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:53,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:53,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:53,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554616967] [2022-02-15 11:28:53,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554616967] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:53,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:53,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:53,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865801643] [2022-02-15 11:28:53,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:53,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:53,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:53,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:53,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:53,633 INFO L87 Difference]: Start difference. First operand 13393 states and 47153 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:53,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:53,779 INFO L93 Difference]: Finished difference Result 22436 states and 76966 transitions. [2022-02-15 11:28:53,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:53,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:53,830 INFO L225 Difference]: With dead ends: 22436 [2022-02-15 11:28:53,830 INFO L226 Difference]: Without dead ends: 22436 [2022-02-15 11:28:53,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:53,831 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 186 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:53,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 411 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:53,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22436 states. [2022-02-15 11:28:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22436 to 13393. [2022-02-15 11:28:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13393 states, 13392 states have (on average 3.520982676224612) internal successors, (47153), 13392 states have internal predecessors, (47153), 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) [2022-02-15 11:28:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13393 states to 13393 states and 47153 transitions. [2022-02-15 11:28:54,140 INFO L78 Accepts]: Start accepts. Automaton has 13393 states and 47153 transitions. Word has length 90 [2022-02-15 11:28:54,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:54,140 INFO L470 AbstractCegarLoop]: Abstraction has 13393 states and 47153 transitions. [2022-02-15 11:28:54,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 13393 states and 47153 transitions. [2022-02-15 11:28:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:54,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:54,164 INFO L514 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] [2022-02-15 11:28:54,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 11:28:54,165 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:54,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1705567293, now seen corresponding path program 7 times [2022-02-15 11:28:54,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:54,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034557246] [2022-02-15 11:28:54,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:54,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:54,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:54,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034557246] [2022-02-15 11:28:54,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034557246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:54,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:54,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:54,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186611296] [2022-02-15 11:28:54,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:54,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:54,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:54,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:54,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:54,239 INFO L87 Difference]: Start difference. First operand 13393 states and 47153 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:54,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:54,428 INFO L93 Difference]: Finished difference Result 26890 states and 92552 transitions. [2022-02-15 11:28:54,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:54,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:54,495 INFO L225 Difference]: With dead ends: 26890 [2022-02-15 11:28:54,495 INFO L226 Difference]: Without dead ends: 26890 [2022-02-15 11:28:54,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:54,496 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 219 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:54,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 410 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26890 states. [2022-02-15 11:28:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26890 to 13393. [2022-02-15 11:28:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13393 states, 13392 states have (on average 3.520982676224612) internal successors, (47153), 13392 states have internal predecessors, (47153), 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) [2022-02-15 11:28:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13393 states to 13393 states and 47153 transitions. [2022-02-15 11:28:54,840 INFO L78 Accepts]: Start accepts. Automaton has 13393 states and 47153 transitions. Word has length 90 [2022-02-15 11:28:54,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:54,841 INFO L470 AbstractCegarLoop]: Abstraction has 13393 states and 47153 transitions. [2022-02-15 11:28:54,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 13393 states and 47153 transitions. [2022-02-15 11:28:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:54,865 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:54,865 INFO L514 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] [2022-02-15 11:28:54,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 11:28:54,865 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:54,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:54,866 INFO L85 PathProgramCache]: Analyzing trace with hash -826567585, now seen corresponding path program 5 times [2022-02-15 11:28:54,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:54,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172501706] [2022-02-15 11:28:54,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:54,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:54,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:54,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172501706] [2022-02-15 11:28:54,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172501706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:54,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:54,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:54,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206028432] [2022-02-15 11:28:54,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:54,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:54,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:54,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:54,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:54,915 INFO L87 Difference]: Start difference. First operand 13393 states and 47153 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:55,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:55,148 INFO L93 Difference]: Finished difference Result 25163 states and 85576 transitions. [2022-02-15 11:28:55,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:55,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:55,270 INFO L225 Difference]: With dead ends: 25163 [2022-02-15 11:28:55,270 INFO L226 Difference]: Without dead ends: 24816 [2022-02-15 11:28:55,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:55,270 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 194 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:55,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 502 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:55,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24816 states. [2022-02-15 11:28:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24816 to 13532. [2022-02-15 11:28:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13532 states, 13531 states have (on average 3.5068361540167023) internal successors, (47451), 13531 states have internal predecessors, (47451), 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) [2022-02-15 11:28:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13532 states to 13532 states and 47451 transitions. [2022-02-15 11:28:55,696 INFO L78 Accepts]: Start accepts. Automaton has 13532 states and 47451 transitions. Word has length 90 [2022-02-15 11:28:55,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:55,696 INFO L470 AbstractCegarLoop]: Abstraction has 13532 states and 47451 transitions. [2022-02-15 11:28:55,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:55,696 INFO L276 IsEmpty]: Start isEmpty. Operand 13532 states and 47451 transitions. [2022-02-15 11:28:55,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:55,722 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:55,722 INFO L514 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] [2022-02-15 11:28:55,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 11:28:55,723 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash -287671169, now seen corresponding path program 8 times [2022-02-15 11:28:55,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:55,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258448141] [2022-02-15 11:28:55,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:55,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:55,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:55,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258448141] [2022-02-15 11:28:55,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258448141] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:55,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:55,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:55,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97214668] [2022-02-15 11:28:55,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:55,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:55,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:55,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:55,781 INFO L87 Difference]: Start difference. First operand 13532 states and 47451 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:55,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:55,972 INFO L93 Difference]: Finished difference Result 25510 states and 86586 transitions. [2022-02-15 11:28:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:55,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:56,035 INFO L225 Difference]: With dead ends: 25510 [2022-02-15 11:28:56,036 INFO L226 Difference]: Without dead ends: 24939 [2022-02-15 11:28:56,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:56,036 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 278 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:56,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 347 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24939 states. [2022-02-15 11:28:56,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24939 to 13626. [2022-02-15 11:28:56,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13626 states, 13625 states have (on average 3.5028990825688076) internal successors, (47727), 13625 states have internal predecessors, (47727), 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) [2022-02-15 11:28:56,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13626 states to 13626 states and 47727 transitions. [2022-02-15 11:28:56,393 INFO L78 Accepts]: Start accepts. Automaton has 13626 states and 47727 transitions. Word has length 90 [2022-02-15 11:28:56,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:56,393 INFO L470 AbstractCegarLoop]: Abstraction has 13626 states and 47727 transitions. [2022-02-15 11:28:56,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:56,393 INFO L276 IsEmpty]: Start isEmpty. Operand 13626 states and 47727 transitions. [2022-02-15 11:28:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:56,424 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:56,424 INFO L514 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] [2022-02-15 11:28:56,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 11:28:56,424 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:56,424 INFO L85 PathProgramCache]: Analyzing trace with hash 916817341, now seen corresponding path program 6 times [2022-02-15 11:28:56,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:56,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444795800] [2022-02-15 11:28:56,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:56,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:56,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:56,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444795800] [2022-02-15 11:28:56,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444795800] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:56,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:56,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:56,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665631694] [2022-02-15 11:28:56,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:56,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:56,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:56,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:56,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:56,525 INFO L87 Difference]: Start difference. First operand 13626 states and 47727 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:56,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:56,669 INFO L93 Difference]: Finished difference Result 19876 states and 67906 transitions. [2022-02-15 11:28:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:56,717 INFO L225 Difference]: With dead ends: 19876 [2022-02-15 11:28:56,718 INFO L226 Difference]: Without dead ends: 19876 [2022-02-15 11:28:56,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:56,718 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 199 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:56,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 375 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19876 states. [2022-02-15 11:28:56,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19876 to 13398. [2022-02-15 11:28:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13398 states, 13397 states have (on average 3.4864521907889827) internal successors, (46708), 13397 states have internal predecessors, (46708), 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) [2022-02-15 11:28:57,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13398 states to 13398 states and 46708 transitions. [2022-02-15 11:28:57,061 INFO L78 Accepts]: Start accepts. Automaton has 13398 states and 46708 transitions. Word has length 90 [2022-02-15 11:28:57,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:57,061 INFO L470 AbstractCegarLoop]: Abstraction has 13398 states and 46708 transitions. [2022-02-15 11:28:57,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:57,061 INFO L276 IsEmpty]: Start isEmpty. Operand 13398 states and 46708 transitions. [2022-02-15 11:28:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 11:28:57,089 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:57,089 INFO L514 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] [2022-02-15 11:28:57,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 11:28:57,089 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:57,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:57,089 INFO L85 PathProgramCache]: Analyzing trace with hash 558413823, now seen corresponding path program 9 times [2022-02-15 11:28:57,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:57,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154499098] [2022-02-15 11:28:57,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:57,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:57,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:57,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154499098] [2022-02-15 11:28:57,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154499098] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:57,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:57,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 11:28:57,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175180523] [2022-02-15 11:28:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:57,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 11:28:57,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:57,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 11:28:57,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 11:28:57,148 INFO L87 Difference]: Start difference. First operand 13398 states and 46708 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:57,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:57,328 INFO L93 Difference]: Finished difference Result 22938 states and 77653 transitions. [2022-02-15 11:28:57,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 11:28:57,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-15 11:28:57,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:57,387 INFO L225 Difference]: With dead ends: 22938 [2022-02-15 11:28:57,387 INFO L226 Difference]: Without dead ends: 22938 [2022-02-15 11:28:57,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-15 11:28:57,388 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 168 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:57,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 455 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:57,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22938 states. [2022-02-15 11:28:57,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22938 to 13142. [2022-02-15 11:28:57,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13142 states, 13141 states have (on average 3.469142378814398) internal successors, (45588), 13141 states have internal predecessors, (45588), 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) [2022-02-15 11:28:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13142 states to 13142 states and 45588 transitions. [2022-02-15 11:28:57,770 INFO L78 Accepts]: Start accepts. Automaton has 13142 states and 45588 transitions. Word has length 90 [2022-02-15 11:28:57,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:57,770 INFO L470 AbstractCegarLoop]: Abstraction has 13142 states and 45588 transitions. [2022-02-15 11:28:57,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-15 11:28:57,770 INFO L276 IsEmpty]: Start isEmpty. Operand 13142 states and 45588 transitions. [2022-02-15 11:28:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:28:57,798 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:57,798 INFO L514 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] [2022-02-15 11:28:57,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 11:28:57,798 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:57,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:57,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1496254150, now seen corresponding path program 1 times [2022-02-15 11:28:57,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:57,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254611028] [2022-02-15 11:28:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:57,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:57,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:57,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254611028] [2022-02-15 11:28:57,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254611028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:57,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:57,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:28:57,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361297948] [2022-02-15 11:28:57,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:57,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:28:57,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:57,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:28:57,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:28:57,936 INFO L87 Difference]: Start difference. First operand 13142 states and 45588 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:28:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:58,275 INFO L93 Difference]: Finished difference Result 19196 states and 65310 transitions. [2022-02-15 11:28:58,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:28:58,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:28:58,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:58,316 INFO L225 Difference]: With dead ends: 19196 [2022-02-15 11:28:58,316 INFO L226 Difference]: Without dead ends: 16674 [2022-02-15 11:28:58,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-15 11:28:58,317 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 415 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:58,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 2061 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:58,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16674 states. [2022-02-15 11:28:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16674 to 13129. [2022-02-15 11:28:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13129 states, 13128 states have (on average 3.4523918342474103) internal successors, (45323), 13128 states have internal predecessors, (45323), 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) [2022-02-15 11:28:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13129 states to 13129 states and 45323 transitions. [2022-02-15 11:28:58,626 INFO L78 Accepts]: Start accepts. Automaton has 13129 states and 45323 transitions. Word has length 92 [2022-02-15 11:28:58,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:58,626 INFO L470 AbstractCegarLoop]: Abstraction has 13129 states and 45323 transitions. [2022-02-15 11:28:58,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:28:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 13129 states and 45323 transitions. [2022-02-15 11:28:58,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:28:58,650 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:58,651 INFO L514 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] [2022-02-15 11:28:58,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 11:28:58,651 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:58,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:58,656 INFO L85 PathProgramCache]: Analyzing trace with hash -83108978, now seen corresponding path program 2 times [2022-02-15 11:28:58,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:58,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476815423] [2022-02-15 11:28:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:58,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:58,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:58,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476815423] [2022-02-15 11:28:58,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476815423] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:58,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:58,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:28:58,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429679126] [2022-02-15 11:28:58,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:58,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:28:58,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:58,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:28:58,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:28:58,763 INFO L87 Difference]: Start difference. First operand 13129 states and 45323 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:28:59,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:59,076 INFO L93 Difference]: Finished difference Result 17697 states and 60715 transitions. [2022-02-15 11:28:59,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:28:59,077 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:28:59,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:59,118 INFO L225 Difference]: With dead ends: 17697 [2022-02-15 11:28:59,118 INFO L226 Difference]: Without dead ends: 16019 [2022-02-15 11:28:59,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-15 11:28:59,118 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 317 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:59,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1773 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:59,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16019 states. [2022-02-15 11:28:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16019 to 13176. [2022-02-15 11:28:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13176 states, 13175 states have (on average 3.449411764705882) internal successors, (45446), 13175 states have internal predecessors, (45446), 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) [2022-02-15 11:28:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13176 states to 13176 states and 45446 transitions. [2022-02-15 11:28:59,438 INFO L78 Accepts]: Start accepts. Automaton has 13176 states and 45446 transitions. Word has length 92 [2022-02-15 11:28:59,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:59,438 INFO L470 AbstractCegarLoop]: Abstraction has 13176 states and 45446 transitions. [2022-02-15 11:28:59,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:28:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 13176 states and 45446 transitions. [2022-02-15 11:28:59,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:28:59,464 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:59,465 INFO L514 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] [2022-02-15 11:28:59,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 11:28:59,465 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:28:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:59,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1556950310, now seen corresponding path program 3 times [2022-02-15 11:28:59,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:59,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930693838] [2022-02-15 11:28:59,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:59,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:59,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:59,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:59,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930693838] [2022-02-15 11:28:59,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930693838] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:59,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:59,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:28:59,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091792859] [2022-02-15 11:28:59,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:59,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:28:59,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:59,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:28:59,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:28:59,550 INFO L87 Difference]: Start difference. First operand 13176 states and 45446 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:28:59,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:59,827 INFO L93 Difference]: Finished difference Result 16930 states and 58059 transitions. [2022-02-15 11:28:59,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:28:59,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:28:59,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:59,870 INFO L225 Difference]: With dead ends: 16930 [2022-02-15 11:28:59,870 INFO L226 Difference]: Without dead ends: 15493 [2022-02-15 11:28:59,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:28:59,871 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 209 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:59,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 1675 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15493 states. [2022-02-15 11:29:00,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15493 to 13223. [2022-02-15 11:29:00,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13223 states, 13222 states have (on average 3.4464528815610347) internal successors, (45569), 13222 states have internal predecessors, (45569), 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) [2022-02-15 11:29:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13223 states to 13223 states and 45569 transitions. [2022-02-15 11:29:00,211 INFO L78 Accepts]: Start accepts. Automaton has 13223 states and 45569 transitions. Word has length 92 [2022-02-15 11:29:00,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:00,211 INFO L470 AbstractCegarLoop]: Abstraction has 13223 states and 45569 transitions. [2022-02-15 11:29:00,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 13223 states and 45569 transitions. [2022-02-15 11:29:00,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:00,240 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:00,240 INFO L514 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] [2022-02-15 11:29:00,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 11:29:00,240 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:00,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1361812084, now seen corresponding path program 4 times [2022-02-15 11:29:00,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:00,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779986560] [2022-02-15 11:29:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:00,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:00,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:00,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779986560] [2022-02-15 11:29:00,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779986560] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:00,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:00,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:00,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511308769] [2022-02-15 11:29:00,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:00,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:00,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:00,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:00,314 INFO L87 Difference]: Start difference. First operand 13223 states and 45569 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:00,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:00,605 INFO L93 Difference]: Finished difference Result 16651 states and 57045 transitions. [2022-02-15 11:29:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:00,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:00,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:00,644 INFO L225 Difference]: With dead ends: 16651 [2022-02-15 11:29:00,644 INFO L226 Difference]: Without dead ends: 14950 [2022-02-15 11:29:00,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:29:00,645 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 242 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:00,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1882 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:00,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14950 states. [2022-02-15 11:29:00,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14950 to 12962. [2022-02-15 11:29:00,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12962 states, 12961 states have (on average 3.4521256075920066) internal successors, (44743), 12961 states have internal predecessors, (44743), 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) [2022-02-15 11:29:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12962 states to 12962 states and 44743 transitions. [2022-02-15 11:29:00,945 INFO L78 Accepts]: Start accepts. Automaton has 12962 states and 44743 transitions. Word has length 92 [2022-02-15 11:29:00,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:00,946 INFO L470 AbstractCegarLoop]: Abstraction has 12962 states and 44743 transitions. [2022-02-15 11:29:00,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 12962 states and 44743 transitions. [2022-02-15 11:29:00,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:00,973 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:00,974 INFO L514 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] [2022-02-15 11:29:00,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 11:29:00,974 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:00,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2100778648, now seen corresponding path program 5 times [2022-02-15 11:29:00,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:00,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186887998] [2022-02-15 11:29:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:00,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:01,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:01,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186887998] [2022-02-15 11:29:01,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186887998] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:01,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:01,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:01,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234436531] [2022-02-15 11:29:01,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:01,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:01,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:01,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:01,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:01,047 INFO L87 Difference]: Start difference. First operand 12962 states and 44743 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:01,437 INFO L93 Difference]: Finished difference Result 17703 states and 60785 transitions. [2022-02-15 11:29:01,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:29:01,438 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:01,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:01,477 INFO L225 Difference]: With dead ends: 17703 [2022-02-15 11:29:01,478 INFO L226 Difference]: Without dead ends: 16031 [2022-02-15 11:29:01,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:29:01,478 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 270 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:01,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 1769 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16031 states. [2022-02-15 11:29:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16031 to 13056. [2022-02-15 11:29:01,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13056 states, 13055 states have (on average 3.4497127537342016) internal successors, (45036), 13055 states have internal predecessors, (45036), 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) [2022-02-15 11:29:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13056 states to 13056 states and 45036 transitions. [2022-02-15 11:29:01,749 INFO L78 Accepts]: Start accepts. Automaton has 13056 states and 45036 transitions. Word has length 92 [2022-02-15 11:29:01,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:01,749 INFO L470 AbstractCegarLoop]: Abstraction has 13056 states and 45036 transitions. [2022-02-15 11:29:01,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:01,750 INFO L276 IsEmpty]: Start isEmpty. Operand 13056 states and 45036 transitions. [2022-02-15 11:29:01,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:01,775 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:01,775 INFO L514 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] [2022-02-15 11:29:01,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 11:29:01,776 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:01,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1020834292, now seen corresponding path program 6 times [2022-02-15 11:29:01,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:01,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995958968] [2022-02-15 11:29:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:01,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:01,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:01,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995958968] [2022-02-15 11:29:01,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995958968] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:01,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:01,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:01,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53666544] [2022-02-15 11:29:01,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:01,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:01,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:01,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:01,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:01,844 INFO L87 Difference]: Start difference. First operand 13056 states and 45036 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:02,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:02,104 INFO L93 Difference]: Finished difference Result 17374 states and 59689 transitions. [2022-02-15 11:29:02,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:02,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:02,141 INFO L225 Difference]: With dead ends: 17374 [2022-02-15 11:29:02,141 INFO L226 Difference]: Without dead ends: 15937 [2022-02-15 11:29:02,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:29:02,142 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 220 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:02,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 1644 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15937 states. [2022-02-15 11:29:02,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15937 to 13103. [2022-02-15 11:29:02,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13103 states, 13102 states have (on average 3.446725690734239) internal successors, (45159), 13102 states have internal predecessors, (45159), 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) [2022-02-15 11:29:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13103 states to 13103 states and 45159 transitions. [2022-02-15 11:29:02,383 INFO L78 Accepts]: Start accepts. Automaton has 13103 states and 45159 transitions. Word has length 92 [2022-02-15 11:29:02,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:02,384 INFO L470 AbstractCegarLoop]: Abstraction has 13103 states and 45159 transitions. [2022-02-15 11:29:02,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 13103 states and 45159 transitions. [2022-02-15 11:29:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:02,408 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:02,408 INFO L514 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] [2022-02-15 11:29:02,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 11:29:02,409 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash 355370610, now seen corresponding path program 7 times [2022-02-15 11:29:02,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:02,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586278170] [2022-02-15 11:29:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:02,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:02,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:02,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586278170] [2022-02-15 11:29:02,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586278170] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:02,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:02,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:02,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259687267] [2022-02-15 11:29:02,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:02,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:02,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:02,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:02,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:02,541 INFO L87 Difference]: Start difference. First operand 13103 states and 45159 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:02,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:02,782 INFO L93 Difference]: Finished difference Result 17095 states and 58675 transitions. [2022-02-15 11:29:02,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:29:02,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:02,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:02,823 INFO L225 Difference]: With dead ends: 17095 [2022-02-15 11:29:02,823 INFO L226 Difference]: Without dead ends: 15561 [2022-02-15 11:29:02,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:29:02,824 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 208 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:02,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 1542 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15561 states. [2022-02-15 11:29:03,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15561 to 13009. [2022-02-15 11:29:03,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13009 states, 13008 states have (on average 3.4491082410824108) internal successors, (44866), 13008 states have internal predecessors, (44866), 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) [2022-02-15 11:29:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13009 states to 13009 states and 44866 transitions. [2022-02-15 11:29:03,098 INFO L78 Accepts]: Start accepts. Automaton has 13009 states and 44866 transitions. Word has length 92 [2022-02-15 11:29:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:03,098 INFO L470 AbstractCegarLoop]: Abstraction has 13009 states and 44866 transitions. [2022-02-15 11:29:03,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 13009 states and 44866 transitions. [2022-02-15 11:29:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:03,122 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:03,122 INFO L514 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] [2022-02-15 11:29:03,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 11:29:03,122 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:03,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1124152634, now seen corresponding path program 8 times [2022-02-15 11:29:03,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:03,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470607245] [2022-02-15 11:29:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:03,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:03,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:03,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:03,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470607245] [2022-02-15 11:29:03,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470607245] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:03,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:03,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:03,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413311416] [2022-02-15 11:29:03,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:03,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:03,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:03,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:03,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:03,196 INFO L87 Difference]: Start difference. First operand 13009 states and 44866 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:03,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:03,466 INFO L93 Difference]: Finished difference Result 17577 states and 60258 transitions. [2022-02-15 11:29:03,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 11:29:03,467 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:03,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:03,503 INFO L225 Difference]: With dead ends: 17577 [2022-02-15 11:29:03,503 INFO L226 Difference]: Without dead ends: 15899 [2022-02-15 11:29:03,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-15 11:29:03,505 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 284 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:03,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1684 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:03,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15899 states. [2022-02-15 11:29:03,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15899 to 13056. [2022-02-15 11:29:03,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13056 states, 13055 states have (on average 3.446112600536193) internal successors, (44989), 13055 states have internal predecessors, (44989), 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) [2022-02-15 11:29:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13056 states to 13056 states and 44989 transitions. [2022-02-15 11:29:03,747 INFO L78 Accepts]: Start accepts. Automaton has 13056 states and 44989 transitions. Word has length 92 [2022-02-15 11:29:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:03,748 INFO L470 AbstractCegarLoop]: Abstraction has 13056 states and 44989 transitions. [2022-02-15 11:29:03,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 13056 states and 44989 transitions. [2022-02-15 11:29:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:03,772 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:03,772 INFO L514 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] [2022-02-15 11:29:03,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 11:29:03,772 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:03,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:03,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1530755374, now seen corresponding path program 9 times [2022-02-15 11:29:03,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:03,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448122660] [2022-02-15 11:29:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:03,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:03,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:03,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448122660] [2022-02-15 11:29:03,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448122660] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:03,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:03,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:03,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839680470] [2022-02-15 11:29:03,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:03,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:03,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:03,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:03,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:03,900 INFO L87 Difference]: Start difference. First operand 13056 states and 44989 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:04,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:04,171 INFO L93 Difference]: Finished difference Result 16951 states and 58112 transitions. [2022-02-15 11:29:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:29:04,172 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:04,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:04,208 INFO L225 Difference]: With dead ends: 16951 [2022-02-15 11:29:04,208 INFO L226 Difference]: Without dead ends: 15514 [2022-02-15 11:29:04,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:04,209 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 211 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:04,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 1727 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15514 states. [2022-02-15 11:29:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15514 to 13103. [2022-02-15 11:29:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13103 states, 13102 states have (on average 3.443138452144711) internal successors, (45112), 13102 states have internal predecessors, (45112), 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) [2022-02-15 11:29:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13103 states to 13103 states and 45112 transitions. [2022-02-15 11:29:04,456 INFO L78 Accepts]: Start accepts. Automaton has 13103 states and 45112 transitions. Word has length 92 [2022-02-15 11:29:04,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:04,457 INFO L470 AbstractCegarLoop]: Abstraction has 13103 states and 45112 transitions. [2022-02-15 11:29:04,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 13103 states and 45112 transitions. [2022-02-15 11:29:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:04,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:04,481 INFO L514 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] [2022-02-15 11:29:04,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 11:29:04,481 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:04,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:04,481 INFO L85 PathProgramCache]: Analyzing trace with hash -154550472, now seen corresponding path program 10 times [2022-02-15 11:29:04,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:04,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848431883] [2022-02-15 11:29:04,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:04,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:04,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:04,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848431883] [2022-02-15 11:29:04,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848431883] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:04,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:04,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:04,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618033053] [2022-02-15 11:29:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:04,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:04,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:04,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:04,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:04,552 INFO L87 Difference]: Start difference. First operand 13103 states and 45112 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:04,790 INFO L93 Difference]: Finished difference Result 16531 states and 56588 transitions. [2022-02-15 11:29:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:04,824 INFO L225 Difference]: With dead ends: 16531 [2022-02-15 11:29:04,825 INFO L226 Difference]: Without dead ends: 14783 [2022-02-15 11:29:04,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:04,825 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 219 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:04,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 1760 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:04,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14783 states. [2022-02-15 11:29:05,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14783 to 12795. [2022-02-15 11:29:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12795 states, 12794 states have (on average 3.4518524308269503) internal successors, (44163), 12794 states have internal predecessors, (44163), 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) [2022-02-15 11:29:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12795 states to 12795 states and 44163 transitions. [2022-02-15 11:29:05,056 INFO L78 Accepts]: Start accepts. Automaton has 12795 states and 44163 transitions. Word has length 92 [2022-02-15 11:29:05,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:05,056 INFO L470 AbstractCegarLoop]: Abstraction has 12795 states and 44163 transitions. [2022-02-15 11:29:05,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:05,057 INFO L276 IsEmpty]: Start isEmpty. Operand 12795 states and 44163 transitions. [2022-02-15 11:29:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:05,079 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:05,079 INFO L514 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] [2022-02-15 11:29:05,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 11:29:05,079 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:05,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:05,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2066006490, now seen corresponding path program 11 times [2022-02-15 11:29:05,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:05,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019354559] [2022-02-15 11:29:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:05,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:05,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:05,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019354559] [2022-02-15 11:29:05,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019354559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:05,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:05,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:05,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098494361] [2022-02-15 11:29:05,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:05,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:05,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:05,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:05,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:05,198 INFO L87 Difference]: Start difference. First operand 12795 states and 44163 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:05,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:05,486 INFO L93 Difference]: Finished difference Result 17862 states and 60883 transitions. [2022-02-15 11:29:05,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:29:05,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:05,527 INFO L225 Difference]: With dead ends: 17862 [2022-02-15 11:29:05,528 INFO L226 Difference]: Without dead ends: 15565 [2022-02-15 11:29:05,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-15 11:29:05,528 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 429 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:05,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1509 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:05,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15565 states. [2022-02-15 11:29:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15565 to 12509. [2022-02-15 11:29:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12509 states, 12508 states have (on average 3.424848097217781) internal successors, (42838), 12508 states have internal predecessors, (42838), 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) [2022-02-15 11:29:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 42838 transitions. [2022-02-15 11:29:05,818 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 42838 transitions. Word has length 92 [2022-02-15 11:29:05,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:05,818 INFO L470 AbstractCegarLoop]: Abstraction has 12509 states and 42838 transitions. [2022-02-15 11:29:05,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:05,818 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 42838 transitions. [2022-02-15 11:29:05,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:05,847 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:05,847 INFO L514 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] [2022-02-15 11:29:05,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 11:29:05,847 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:05,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:05,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1526134988, now seen corresponding path program 12 times [2022-02-15 11:29:05,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:05,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375591297] [2022-02-15 11:29:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:05,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:05,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:05,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375591297] [2022-02-15 11:29:05,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375591297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:05,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:05,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:05,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457962389] [2022-02-15 11:29:05,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:05,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:05,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:05,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:05,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:05,923 INFO L87 Difference]: Start difference. First operand 12509 states and 42838 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:06,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:06,228 INFO L93 Difference]: Finished difference Result 16666 states and 56884 transitions. [2022-02-15 11:29:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:29:06,229 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:06,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:06,267 INFO L225 Difference]: With dead ends: 16666 [2022-02-15 11:29:06,268 INFO L226 Difference]: Without dead ends: 14994 [2022-02-15 11:29:06,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-15 11:29:06,268 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 319 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:06,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 1851 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:06,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14994 states. [2022-02-15 11:29:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14994 to 12556. [2022-02-15 11:29:06,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12556 states, 12555 states have (on average 3.4218239745121464) internal successors, (42961), 12555 states have internal predecessors, (42961), 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) [2022-02-15 11:29:06,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12556 states to 12556 states and 42961 transitions. [2022-02-15 11:29:06,534 INFO L78 Accepts]: Start accepts. Automaton has 12556 states and 42961 transitions. Word has length 92 [2022-02-15 11:29:06,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:06,534 INFO L470 AbstractCegarLoop]: Abstraction has 12556 states and 42961 transitions. [2022-02-15 11:29:06,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:06,534 INFO L276 IsEmpty]: Start isEmpty. Operand 12556 states and 42961 transitions. [2022-02-15 11:29:06,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:06,559 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:06,559 INFO L514 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] [2022-02-15 11:29:06,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 11:29:06,559 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:06,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:06,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1595477952, now seen corresponding path program 13 times [2022-02-15 11:29:06,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:06,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116307830] [2022-02-15 11:29:06,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:06,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:06,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:06,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116307830] [2022-02-15 11:29:06,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116307830] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:06,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:06,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:06,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784830874] [2022-02-15 11:29:06,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:06,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:06,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:06,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:06,628 INFO L87 Difference]: Start difference. First operand 12556 states and 42961 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:06,889 INFO L93 Difference]: Finished difference Result 16008 states and 54598 transitions. [2022-02-15 11:29:06,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:06,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:06,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:06,925 INFO L225 Difference]: With dead ends: 16008 [2022-02-15 11:29:06,926 INFO L226 Difference]: Without dead ends: 14571 [2022-02-15 11:29:06,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:29:06,926 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 232 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:06,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 1650 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:06,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14571 states. [2022-02-15 11:29:07,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14571 to 12603. [2022-02-15 11:29:07,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12603 states, 12602 states have (on average 3.418822409141406) internal successors, (43084), 12602 states have internal predecessors, (43084), 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) [2022-02-15 11:29:07,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12603 states to 12603 states and 43084 transitions. [2022-02-15 11:29:07,201 INFO L78 Accepts]: Start accepts. Automaton has 12603 states and 43084 transitions. Word has length 92 [2022-02-15 11:29:07,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:07,201 INFO L470 AbstractCegarLoop]: Abstraction has 12603 states and 43084 transitions. [2022-02-15 11:29:07,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:07,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12603 states and 43084 transitions. [2022-02-15 11:29:07,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:07,225 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:07,225 INFO L514 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] [2022-02-15 11:29:07,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 11:29:07,226 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:07,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash -219273050, now seen corresponding path program 14 times [2022-02-15 11:29:07,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:07,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527830050] [2022-02-15 11:29:07,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:07,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:07,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:07,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527830050] [2022-02-15 11:29:07,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527830050] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:07,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:07,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:07,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611236508] [2022-02-15 11:29:07,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:07,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:07,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:07,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:07,290 INFO L87 Difference]: Start difference. First operand 12603 states and 43084 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:07,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:07,536 INFO L93 Difference]: Finished difference Result 15635 states and 53244 transitions. [2022-02-15 11:29:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:29:07,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:07,571 INFO L225 Difference]: With dead ends: 15635 [2022-02-15 11:29:07,571 INFO L226 Difference]: Without dead ends: 13976 [2022-02-15 11:29:07,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:07,572 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 203 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:07,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1615 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:07,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13976 states. [2022-02-15 11:29:07,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13976 to 12345. [2022-02-15 11:29:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12345 states, 12344 states have (on average 3.4190699935191184) internal successors, (42205), 12344 states have internal predecessors, (42205), 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) [2022-02-15 11:29:07,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12345 states to 12345 states and 42205 transitions. [2022-02-15 11:29:07,807 INFO L78 Accepts]: Start accepts. Automaton has 12345 states and 42205 transitions. Word has length 92 [2022-02-15 11:29:07,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:07,807 INFO L470 AbstractCegarLoop]: Abstraction has 12345 states and 42205 transitions. [2022-02-15 11:29:07,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:07,807 INFO L276 IsEmpty]: Start isEmpty. Operand 12345 states and 42205 transitions. [2022-02-15 11:29:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:07,829 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:07,829 INFO L514 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] [2022-02-15 11:29:07,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 11:29:07,829 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:07,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:07,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2070974740, now seen corresponding path program 15 times [2022-02-15 11:29:07,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:07,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477339224] [2022-02-15 11:29:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:07,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:07,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:07,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477339224] [2022-02-15 11:29:07,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477339224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:07,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:07,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:07,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760326258] [2022-02-15 11:29:07,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:07,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:07,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:07,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:07,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:07,900 INFO L87 Difference]: Start difference. First operand 12345 states and 42205 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:08,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:08,182 INFO L93 Difference]: Finished difference Result 16406 states and 55891 transitions. [2022-02-15 11:29:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 11:29:08,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:08,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:08,218 INFO L225 Difference]: With dead ends: 16406 [2022-02-15 11:29:08,218 INFO L226 Difference]: Without dead ends: 14734 [2022-02-15 11:29:08,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-15 11:29:08,218 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 297 mSDsluCounter, 1641 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:08,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 1774 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14734 states. [2022-02-15 11:29:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14734 to 12431. [2022-02-15 11:29:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12431 states, 12430 states have (on average 3.41657280772325) internal successors, (42468), 12430 states have internal predecessors, (42468), 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) [2022-02-15 11:29:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12431 states to 12431 states and 42468 transitions. [2022-02-15 11:29:08,475 INFO L78 Accepts]: Start accepts. Automaton has 12431 states and 42468 transitions. Word has length 92 [2022-02-15 11:29:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:08,475 INFO L470 AbstractCegarLoop]: Abstraction has 12431 states and 42468 transitions. [2022-02-15 11:29:08,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:08,475 INFO L276 IsEmpty]: Start isEmpty. Operand 12431 states and 42468 transitions. [2022-02-15 11:29:08,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:08,498 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:08,498 INFO L514 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] [2022-02-15 11:29:08,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 11:29:08,499 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash -897620384, now seen corresponding path program 16 times [2022-02-15 11:29:08,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:08,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319466136] [2022-02-15 11:29:08,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:08,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:08,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:08,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319466136] [2022-02-15 11:29:08,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319466136] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:08,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:08,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:08,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313449201] [2022-02-15 11:29:08,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:08,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:08,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:08,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:08,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:08,569 INFO L87 Difference]: Start difference. First operand 12431 states and 42468 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:08,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:08,837 INFO L93 Difference]: Finished difference Result 16077 states and 54795 transitions. [2022-02-15 11:29:08,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:08,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:08,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:08,875 INFO L225 Difference]: With dead ends: 16077 [2022-02-15 11:29:08,875 INFO L226 Difference]: Without dead ends: 14640 [2022-02-15 11:29:08,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:08,876 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 236 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:08,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1728 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14640 states. [2022-02-15 11:29:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14640 to 12478. [2022-02-15 11:29:09,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12478 states, 12477 states have (on average 3.4135609521519594) internal successors, (42591), 12477 states have internal predecessors, (42591), 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) [2022-02-15 11:29:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12478 states to 12478 states and 42591 transitions. [2022-02-15 11:29:09,125 INFO L78 Accepts]: Start accepts. Automaton has 12478 states and 42591 transitions. Word has length 92 [2022-02-15 11:29:09,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:09,125 INFO L470 AbstractCegarLoop]: Abstraction has 12478 states and 42591 transitions. [2022-02-15 11:29:09,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 12478 states and 42591 transitions. [2022-02-15 11:29:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:09,148 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:09,149 INFO L514 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] [2022-02-15 11:29:09,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 11:29:09,149 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:09,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:09,149 INFO L85 PathProgramCache]: Analyzing trace with hash 478584518, now seen corresponding path program 17 times [2022-02-15 11:29:09,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:09,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833024011] [2022-02-15 11:29:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:09,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:09,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:09,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833024011] [2022-02-15 11:29:09,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833024011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:09,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:09,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:09,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050299351] [2022-02-15 11:29:09,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:09,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:09,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:09,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:09,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:09,219 INFO L87 Difference]: Start difference. First operand 12478 states and 42591 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:09,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:09,475 INFO L93 Difference]: Finished difference Result 15798 states and 53781 transitions. [2022-02-15 11:29:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:29:09,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:09,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:09,508 INFO L225 Difference]: With dead ends: 15798 [2022-02-15 11:29:09,508 INFO L226 Difference]: Without dead ends: 14264 [2022-02-15 11:29:09,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:09,515 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 191 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:09,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1634 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:09,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14264 states. [2022-02-15 11:29:09,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14264 to 12384. [2022-02-15 11:29:09,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12384 states, 12383 states have (on average 3.4158120003230237) internal successors, (42298), 12383 states have internal predecessors, (42298), 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) [2022-02-15 11:29:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12384 states to 12384 states and 42298 transitions. [2022-02-15 11:29:09,732 INFO L78 Accepts]: Start accepts. Automaton has 12384 states and 42298 transitions. Word has length 92 [2022-02-15 11:29:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:09,732 INFO L470 AbstractCegarLoop]: Abstraction has 12384 states and 42298 transitions. [2022-02-15 11:29:09,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 12384 states and 42298 transitions. [2022-02-15 11:29:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:09,753 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:09,753 INFO L514 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] [2022-02-15 11:29:09,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 11:29:09,754 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:09,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1247366542, now seen corresponding path program 18 times [2022-02-15 11:29:09,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:09,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258008605] [2022-02-15 11:29:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:09,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:09,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:09,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258008605] [2022-02-15 11:29:09,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258008605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:09,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:09,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:09,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832544301] [2022-02-15 11:29:09,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:09,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:09,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:09,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:09,838 INFO L87 Difference]: Start difference. First operand 12384 states and 42298 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:10,111 INFO L93 Difference]: Finished difference Result 16184 states and 55036 transitions. [2022-02-15 11:29:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:29:10,112 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:10,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:10,146 INFO L225 Difference]: With dead ends: 16184 [2022-02-15 11:29:10,147 INFO L226 Difference]: Without dead ends: 14506 [2022-02-15 11:29:10,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:29:10,147 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 256 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:10,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 1740 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:10,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14506 states. [2022-02-15 11:29:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14506 to 12431. [2022-02-15 11:29:10,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12431 states, 12430 states have (on average 3.4127916331456154) internal successors, (42421), 12430 states have internal predecessors, (42421), 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) [2022-02-15 11:29:10,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12431 states to 12431 states and 42421 transitions. [2022-02-15 11:29:10,403 INFO L78 Accepts]: Start accepts. Automaton has 12431 states and 42421 transitions. Word has length 92 [2022-02-15 11:29:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:10,404 INFO L470 AbstractCegarLoop]: Abstraction has 12431 states and 42421 transitions. [2022-02-15 11:29:10,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 12431 states and 42421 transitions. [2022-02-15 11:29:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:10,428 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:10,428 INFO L514 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] [2022-02-15 11:29:10,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 11:29:10,428 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:10,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1407541466, now seen corresponding path program 19 times [2022-02-15 11:29:10,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:10,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675031571] [2022-02-15 11:29:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:10,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:10,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:10,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675031571] [2022-02-15 11:29:10,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675031571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:10,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:10,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:10,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957963252] [2022-02-15 11:29:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:10,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:10,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:10,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:10,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:10,495 INFO L87 Difference]: Start difference. First operand 12431 states and 42421 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:10,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:10,786 INFO L93 Difference]: Finished difference Result 15630 states and 53136 transitions. [2022-02-15 11:29:10,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:29:10,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:10,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:10,818 INFO L225 Difference]: With dead ends: 15630 [2022-02-15 11:29:10,819 INFO L226 Difference]: Without dead ends: 14193 [2022-02-15 11:29:10,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:29:10,819 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 228 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:10,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 1587 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:10,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14193 states. [2022-02-15 11:29:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14193 to 12478. [2022-02-15 11:29:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12478 states, 12477 states have (on average 3.4097940209986377) internal successors, (42544), 12477 states have internal predecessors, (42544), 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) [2022-02-15 11:29:11,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12478 states to 12478 states and 42544 transitions. [2022-02-15 11:29:11,040 INFO L78 Accepts]: Start accepts. Automaton has 12478 states and 42544 transitions. Word has length 92 [2022-02-15 11:29:11,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:11,040 INFO L470 AbstractCegarLoop]: Abstraction has 12478 states and 42544 transitions. [2022-02-15 11:29:11,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:11,040 INFO L276 IsEmpty]: Start isEmpty. Operand 12478 states and 42544 transitions. [2022-02-15 11:29:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:11,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:11,063 INFO L514 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] [2022-02-15 11:29:11,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 11:29:11,063 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:11,063 INFO L85 PathProgramCache]: Analyzing trace with hash -31336564, now seen corresponding path program 20 times [2022-02-15 11:29:11,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:11,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743695060] [2022-02-15 11:29:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:11,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:11,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:11,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743695060] [2022-02-15 11:29:11,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743695060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:11,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:11,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:11,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881695142] [2022-02-15 11:29:11,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:11,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:11,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:11,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:11,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:11,130 INFO L87 Difference]: Start difference. First operand 12478 states and 42544 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:11,355 INFO L93 Difference]: Finished difference Result 15138 states and 51366 transitions. [2022-02-15 11:29:11,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:11,359 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:11,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:11,389 INFO L225 Difference]: With dead ends: 15138 [2022-02-15 11:29:11,389 INFO L226 Difference]: Without dead ends: 13152 [2022-02-15 11:29:11,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:29:11,403 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 203 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:11,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1591 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:11,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13152 states. [2022-02-15 11:29:11,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13152 to 11792. [2022-02-15 11:29:11,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11792 states, 11791 states have (on average 3.4118395386311593) internal successors, (40229), 11791 states have internal predecessors, (40229), 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) [2022-02-15 11:29:11,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11792 states to 11792 states and 40229 transitions. [2022-02-15 11:29:11,606 INFO L78 Accepts]: Start accepts. Automaton has 11792 states and 40229 transitions. Word has length 92 [2022-02-15 11:29:11,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:11,606 INFO L470 AbstractCegarLoop]: Abstraction has 11792 states and 40229 transitions. [2022-02-15 11:29:11,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:11,606 INFO L276 IsEmpty]: Start isEmpty. Operand 11792 states and 40229 transitions. [2022-02-15 11:29:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:11,625 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:11,625 INFO L514 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] [2022-02-15 11:29:11,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 11:29:11,625 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:11,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash -172316422, now seen corresponding path program 1 times [2022-02-15 11:29:11,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:11,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817918402] [2022-02-15 11:29:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:11,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:11,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:11,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:11,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817918402] [2022-02-15 11:29:11,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817918402] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:11,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:11,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:11,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769492866] [2022-02-15 11:29:11,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:11,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:11,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:11,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:11,701 INFO L87 Difference]: Start difference. First operand 11792 states and 40229 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:11,968 INFO L93 Difference]: Finished difference Result 17375 states and 58311 transitions. [2022-02-15 11:29:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:29:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:12,004 INFO L225 Difference]: With dead ends: 17375 [2022-02-15 11:29:12,004 INFO L226 Difference]: Without dead ends: 14853 [2022-02-15 11:29:12,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-15 11:29:12,004 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 421 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:12,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1644 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:12,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14853 states. [2022-02-15 11:29:12,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14853 to 11779. [2022-02-15 11:29:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11779 states, 11778 states have (on average 3.391407709288504) internal successors, (39944), 11778 states have internal predecessors, (39944), 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) [2022-02-15 11:29:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11779 states to 11779 states and 39944 transitions. [2022-02-15 11:29:12,223 INFO L78 Accepts]: Start accepts. Automaton has 11779 states and 39944 transitions. Word has length 92 [2022-02-15 11:29:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:12,223 INFO L470 AbstractCegarLoop]: Abstraction has 11779 states and 39944 transitions. [2022-02-15 11:29:12,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 11779 states and 39944 transitions. [2022-02-15 11:29:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:12,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:12,241 INFO L514 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] [2022-02-15 11:29:12,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-15 11:29:12,242 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:12,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:12,242 INFO L85 PathProgramCache]: Analyzing trace with hash 259526542, now seen corresponding path program 2 times [2022-02-15 11:29:12,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:12,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322018045] [2022-02-15 11:29:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:12,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:12,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:12,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322018045] [2022-02-15 11:29:12,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322018045] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:12,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:12,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:12,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574515613] [2022-02-15 11:29:12,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:12,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:12,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:12,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:12,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:12,308 INFO L87 Difference]: Start difference. First operand 11779 states and 39944 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:12,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:12,606 INFO L93 Difference]: Finished difference Result 16044 states and 54246 transitions. [2022-02-15 11:29:12,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:29:12,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:12,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:12,640 INFO L225 Difference]: With dead ends: 16044 [2022-02-15 11:29:12,640 INFO L226 Difference]: Without dead ends: 14366 [2022-02-15 11:29:12,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-15 11:29:12,641 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 316 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:12,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 1962 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14366 states. [2022-02-15 11:29:12,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14366 to 11826. [2022-02-15 11:29:12,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11826 states, 11825 states have (on average 3.3883298097251586) internal successors, (40067), 11825 states have internal predecessors, (40067), 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) [2022-02-15 11:29:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11826 states to 11826 states and 40067 transitions. [2022-02-15 11:29:12,848 INFO L78 Accepts]: Start accepts. Automaton has 11826 states and 40067 transitions. Word has length 92 [2022-02-15 11:29:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:12,848 INFO L470 AbstractCegarLoop]: Abstraction has 11826 states and 40067 transitions. [2022-02-15 11:29:12,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 11826 states and 40067 transitions. [2022-02-15 11:29:12,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:12,867 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:12,867 INFO L514 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] [2022-02-15 11:29:12,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 11:29:12,867 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:12,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:12,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1899585830, now seen corresponding path program 3 times [2022-02-15 11:29:12,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:12,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492342112] [2022-02-15 11:29:12,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:12,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:12,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:12,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492342112] [2022-02-15 11:29:12,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492342112] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:12,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:12,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:12,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270522895] [2022-02-15 11:29:12,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:12,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:12,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:12,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:12,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:12,981 INFO L87 Difference]: Start difference. First operand 11826 states and 40067 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:13,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:13,224 INFO L93 Difference]: Finished difference Result 15277 states and 51590 transitions. [2022-02-15 11:29:13,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:29:13,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:13,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:13,260 INFO L225 Difference]: With dead ends: 15277 [2022-02-15 11:29:13,260 INFO L226 Difference]: Without dead ends: 13840 [2022-02-15 11:29:13,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:13,260 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 209 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:13,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 1829 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:13,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13840 states. [2022-02-15 11:29:13,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13840 to 11873. [2022-02-15 11:29:13,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11873 states, 11872 states have (on average 3.38527628032345) internal successors, (40190), 11872 states have internal predecessors, (40190), 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) [2022-02-15 11:29:13,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11873 states to 11873 states and 40190 transitions. [2022-02-15 11:29:13,491 INFO L78 Accepts]: Start accepts. Automaton has 11873 states and 40190 transitions. Word has length 92 [2022-02-15 11:29:13,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:13,491 INFO L470 AbstractCegarLoop]: Abstraction has 11873 states and 40190 transitions. [2022-02-15 11:29:13,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:13,495 INFO L276 IsEmpty]: Start isEmpty. Operand 11873 states and 40190 transitions. [2022-02-15 11:29:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:13,517 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:13,517 INFO L514 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] [2022-02-15 11:29:13,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 11:29:13,517 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:13,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1019176564, now seen corresponding path program 4 times [2022-02-15 11:29:13,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:13,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334646321] [2022-02-15 11:29:13,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:13,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:13,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:13,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334646321] [2022-02-15 11:29:13,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334646321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:13,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:13,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:13,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040254057] [2022-02-15 11:29:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:13,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:13,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:13,586 INFO L87 Difference]: Start difference. First operand 11873 states and 40190 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:13,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:13,828 INFO L93 Difference]: Finished difference Result 14998 states and 50576 transitions. [2022-02-15 11:29:13,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:13,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:13,861 INFO L225 Difference]: With dead ends: 14998 [2022-02-15 11:29:13,861 INFO L226 Difference]: Without dead ends: 13297 [2022-02-15 11:29:13,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:29:13,862 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 242 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:13,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1726 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:13,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13297 states. [2022-02-15 11:29:14,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13297 to 11612. [2022-02-15 11:29:14,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11612 states, 11611 states have (on average 3.3898888984583584) internal successors, (39360), 11611 states have internal predecessors, (39360), 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) [2022-02-15 11:29:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11612 states to 11612 states and 39360 transitions. [2022-02-15 11:29:14,088 INFO L78 Accepts]: Start accepts. Automaton has 11612 states and 39360 transitions. Word has length 92 [2022-02-15 11:29:14,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:14,088 INFO L470 AbstractCegarLoop]: Abstraction has 11612 states and 39360 transitions. [2022-02-15 11:29:14,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 11612 states and 39360 transitions. [2022-02-15 11:29:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:14,109 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:14,109 INFO L514 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] [2022-02-15 11:29:14,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-15 11:29:14,109 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:14,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:14,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1047699032, now seen corresponding path program 5 times [2022-02-15 11:29:14,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:14,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232690004] [2022-02-15 11:29:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:14,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:14,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:14,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:14,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232690004] [2022-02-15 11:29:14,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232690004] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:14,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:14,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:14,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766854993] [2022-02-15 11:29:14,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:14,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:14,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:14,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:14,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:14,177 INFO L87 Difference]: Start difference. First operand 11612 states and 39360 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:14,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:14,422 INFO L93 Difference]: Finished difference Result 16050 states and 54312 transitions. [2022-02-15 11:29:14,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:29:14,422 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:14,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:14,455 INFO L225 Difference]: With dead ends: 16050 [2022-02-15 11:29:14,456 INFO L226 Difference]: Without dead ends: 14378 [2022-02-15 11:29:14,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:29:14,456 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 271 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:14,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1469 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:14,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14378 states. [2022-02-15 11:29:14,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14378 to 11706. [2022-02-15 11:29:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11706 states, 11705 states have (on average 3.3876975651431014) internal successors, (39653), 11705 states have internal predecessors, (39653), 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) [2022-02-15 11:29:14,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11706 states to 11706 states and 39653 transitions. [2022-02-15 11:29:14,665 INFO L78 Accepts]: Start accepts. Automaton has 11706 states and 39653 transitions. Word has length 92 [2022-02-15 11:29:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:14,666 INFO L470 AbstractCegarLoop]: Abstraction has 11706 states and 39653 transitions. [2022-02-15 11:29:14,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 11706 states and 39653 transitions. [2022-02-15 11:29:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:14,684 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:14,684 INFO L514 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] [2022-02-15 11:29:14,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 11:29:14,685 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:14,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:14,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2073913908, now seen corresponding path program 6 times [2022-02-15 11:29:14,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:14,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137638377] [2022-02-15 11:29:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:14,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:14,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:14,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137638377] [2022-02-15 11:29:14,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137638377] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:14,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:14,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:14,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728139040] [2022-02-15 11:29:14,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:14,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:14,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:14,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:14,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:14,792 INFO L87 Difference]: Start difference. First operand 11706 states and 39653 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:15,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:15,038 INFO L93 Difference]: Finished difference Result 15721 states and 53216 transitions. [2022-02-15 11:29:15,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:15,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:15,076 INFO L225 Difference]: With dead ends: 15721 [2022-02-15 11:29:15,076 INFO L226 Difference]: Without dead ends: 14284 [2022-02-15 11:29:15,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:29:15,076 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 221 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:15,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 1553 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:15,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14284 states. [2022-02-15 11:29:15,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14284 to 11753. [2022-02-15 11:29:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11753 states, 11752 states have (on average 3.3846153846153846) internal successors, (39776), 11752 states have internal predecessors, (39776), 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) [2022-02-15 11:29:15,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11753 states to 11753 states and 39776 transitions. [2022-02-15 11:29:15,316 INFO L78 Accepts]: Start accepts. Automaton has 11753 states and 39776 transitions. Word has length 92 [2022-02-15 11:29:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:15,316 INFO L470 AbstractCegarLoop]: Abstraction has 11753 states and 39776 transitions. [2022-02-15 11:29:15,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 11753 states and 39776 transitions. [2022-02-15 11:29:15,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:15,336 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:15,336 INFO L514 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] [2022-02-15 11:29:15,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-15 11:29:15,337 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:15,337 INFO L85 PathProgramCache]: Analyzing trace with hash -697709006, now seen corresponding path program 7 times [2022-02-15 11:29:15,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:15,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390826266] [2022-02-15 11:29:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:15,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:15,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:15,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390826266] [2022-02-15 11:29:15,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390826266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:15,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:15,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:15,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713082958] [2022-02-15 11:29:15,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:15,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:15,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:15,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:15,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:15,406 INFO L87 Difference]: Start difference. First operand 11753 states and 39776 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:15,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:15,643 INFO L93 Difference]: Finished difference Result 15442 states and 52202 transitions. [2022-02-15 11:29:15,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:29:15,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:15,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:15,676 INFO L225 Difference]: With dead ends: 15442 [2022-02-15 11:29:15,676 INFO L226 Difference]: Without dead ends: 13908 [2022-02-15 11:29:15,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:29:15,676 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 207 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:15,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 1676 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:15,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13908 states. [2022-02-15 11:29:15,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13908 to 11659. [2022-02-15 11:29:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11659 states, 11658 states have (on average 3.38677303139475) internal successors, (39483), 11658 states have internal predecessors, (39483), 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) [2022-02-15 11:29:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11659 states to 11659 states and 39483 transitions. [2022-02-15 11:29:15,894 INFO L78 Accepts]: Start accepts. Automaton has 11659 states and 39483 transitions. Word has length 92 [2022-02-15 11:29:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:15,895 INFO L470 AbstractCegarLoop]: Abstraction has 11659 states and 39483 transitions. [2022-02-15 11:29:15,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 11659 states and 39483 transitions. [2022-02-15 11:29:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:15,915 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:15,915 INFO L514 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] [2022-02-15 11:29:15,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-15 11:29:15,915 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:15,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:15,916 INFO L85 PathProgramCache]: Analyzing trace with hash 71073018, now seen corresponding path program 8 times [2022-02-15 11:29:15,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:15,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165552465] [2022-02-15 11:29:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:15,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:16,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:16,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165552465] [2022-02-15 11:29:16,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165552465] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:16,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:16,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:16,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393204117] [2022-02-15 11:29:16,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:16,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:16,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:16,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:16,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:16,017 INFO L87 Difference]: Start difference. First operand 11659 states and 39483 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:16,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:16,375 INFO L93 Difference]: Finished difference Result 15924 states and 53785 transitions. [2022-02-15 11:29:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 11:29:16,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:16,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:16,409 INFO L225 Difference]: With dead ends: 15924 [2022-02-15 11:29:16,409 INFO L226 Difference]: Without dead ends: 14246 [2022-02-15 11:29:16,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-15 11:29:16,411 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 284 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:16,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1838 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:16,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14246 states. [2022-02-15 11:29:16,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14246 to 11706. [2022-02-15 11:29:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11706 states, 11705 states have (on average 3.38368218709953) internal successors, (39606), 11705 states have internal predecessors, (39606), 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) [2022-02-15 11:29:16,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11706 states to 11706 states and 39606 transitions. [2022-02-15 11:29:16,616 INFO L78 Accepts]: Start accepts. Automaton has 11706 states and 39606 transitions. Word has length 92 [2022-02-15 11:29:16,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:16,616 INFO L470 AbstractCegarLoop]: Abstraction has 11706 states and 39606 transitions. [2022-02-15 11:29:16,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:16,616 INFO L276 IsEmpty]: Start isEmpty. Operand 11706 states and 39606 transitions. [2022-02-15 11:29:16,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:16,635 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:16,635 INFO L514 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] [2022-02-15 11:29:16,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-15 11:29:16,635 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:16,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1711132306, now seen corresponding path program 9 times [2022-02-15 11:29:16,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:16,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513650106] [2022-02-15 11:29:16,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:16,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:16,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:16,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513650106] [2022-02-15 11:29:16,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513650106] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:16,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:16,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:16,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443309082] [2022-02-15 11:29:16,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:16,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:16,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:16,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:16,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:16,723 INFO L87 Difference]: Start difference. First operand 11706 states and 39606 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:16,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:16,931 INFO L93 Difference]: Finished difference Result 15298 states and 51639 transitions. [2022-02-15 11:29:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:29:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:16,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:16,962 INFO L225 Difference]: With dead ends: 15298 [2022-02-15 11:29:16,962 INFO L226 Difference]: Without dead ends: 13861 [2022-02-15 11:29:16,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:16,963 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 211 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:16,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 1636 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:16,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13861 states. [2022-02-15 11:29:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13861 to 11753. [2022-02-15 11:29:17,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11753 states, 11752 states have (on average 3.3806160653505786) internal successors, (39729), 11752 states have internal predecessors, (39729), 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) [2022-02-15 11:29:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11753 states to 11753 states and 39729 transitions. [2022-02-15 11:29:17,163 INFO L78 Accepts]: Start accepts. Automaton has 11753 states and 39729 transitions. Word has length 92 [2022-02-15 11:29:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:17,164 INFO L470 AbstractCegarLoop]: Abstraction has 11753 states and 39729 transitions. [2022-02-15 11:29:17,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:17,164 INFO L276 IsEmpty]: Start isEmpty. Operand 11753 states and 39729 transitions. [2022-02-15 11:29:17,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:17,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:17,182 INFO L514 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] [2022-02-15 11:29:17,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-15 11:29:17,183 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:17,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:17,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1207630088, now seen corresponding path program 10 times [2022-02-15 11:29:17,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:17,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634878367] [2022-02-15 11:29:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:17,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:17,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:17,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634878367] [2022-02-15 11:29:17,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634878367] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:17,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:17,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:17,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939220099] [2022-02-15 11:29:17,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:17,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:17,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:17,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:17,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:17,262 INFO L87 Difference]: Start difference. First operand 11753 states and 39729 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:17,507 INFO L93 Difference]: Finished difference Result 14878 states and 50115 transitions. [2022-02-15 11:29:17,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:17,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:17,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:17,541 INFO L225 Difference]: With dead ends: 14878 [2022-02-15 11:29:17,541 INFO L226 Difference]: Without dead ends: 13130 [2022-02-15 11:29:17,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:17,541 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 219 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:17,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 1765 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13130 states. [2022-02-15 11:29:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13130 to 11445. [2022-02-15 11:29:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11445 states, 11444 states have (on average 3.388325760223698) internal successors, (38776), 11444 states have internal predecessors, (38776), 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) [2022-02-15 11:29:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11445 states to 11445 states and 38776 transitions. [2022-02-15 11:29:17,754 INFO L78 Accepts]: Start accepts. Automaton has 11445 states and 38776 transitions. Word has length 92 [2022-02-15 11:29:17,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:17,754 INFO L470 AbstractCegarLoop]: Abstraction has 11445 states and 38776 transitions. [2022-02-15 11:29:17,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:17,754 INFO L276 IsEmpty]: Start isEmpty. Operand 11445 states and 38776 transitions. [2022-02-15 11:29:17,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:17,775 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:17,776 INFO L514 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] [2022-02-15 11:29:17,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-15 11:29:17,776 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:17,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:17,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2000094280, now seen corresponding path program 11 times [2022-02-15 11:29:17,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:17,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897218192] [2022-02-15 11:29:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:17,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:17,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:17,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897218192] [2022-02-15 11:29:17,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897218192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:17,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:17,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:17,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189826199] [2022-02-15 11:29:17,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:17,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:17,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:17,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:17,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:17,841 INFO L87 Difference]: Start difference. First operand 11445 states and 38776 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:18,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:18,090 INFO L93 Difference]: Finished difference Result 16089 states and 54028 transitions. [2022-02-15 11:29:18,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:29:18,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:18,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:18,120 INFO L225 Difference]: With dead ends: 16089 [2022-02-15 11:29:18,120 INFO L226 Difference]: Without dead ends: 13792 [2022-02-15 11:29:18,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-15 11:29:18,136 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 426 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:18,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1645 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13792 states. [2022-02-15 11:29:18,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13792 to 11159. [2022-02-15 11:29:18,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11159 states, 11158 states have (on average 3.354633446854275) internal successors, (37431), 11158 states have internal predecessors, (37431), 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) [2022-02-15 11:29:18,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11159 states to 11159 states and 37431 transitions. [2022-02-15 11:29:18,342 INFO L78 Accepts]: Start accepts. Automaton has 11159 states and 37431 transitions. Word has length 92 [2022-02-15 11:29:18,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:18,342 INFO L470 AbstractCegarLoop]: Abstraction has 11159 states and 37431 transitions. [2022-02-15 11:29:18,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:18,343 INFO L276 IsEmpty]: Start isEmpty. Operand 11159 states and 37431 transitions. [2022-02-15 11:29:18,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:18,360 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:18,360 INFO L514 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] [2022-02-15 11:29:18,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-15 11:29:18,360 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:18,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:18,361 INFO L85 PathProgramCache]: Analyzing trace with hash 911458990, now seen corresponding path program 12 times [2022-02-15 11:29:18,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:18,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307158960] [2022-02-15 11:29:18,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:18,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:18,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:18,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307158960] [2022-02-15 11:29:18,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307158960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:18,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:18,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:18,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094356206] [2022-02-15 11:29:18,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:18,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:18,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:18,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:18,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:18,462 INFO L87 Difference]: Start difference. First operand 11159 states and 37431 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:18,747 INFO L93 Difference]: Finished difference Result 15061 states and 50559 transitions. [2022-02-15 11:29:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:29:18,748 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:18,781 INFO L225 Difference]: With dead ends: 15061 [2022-02-15 11:29:18,781 INFO L226 Difference]: Without dead ends: 13389 [2022-02-15 11:29:18,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-15 11:29:18,782 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 320 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:18,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1685 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13389 states. [2022-02-15 11:29:18,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13389 to 11206. [2022-02-15 11:29:18,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11206 states, 11205 states have (on average 3.3515394912985275) internal successors, (37554), 11205 states have internal predecessors, (37554), 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) [2022-02-15 11:29:19,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11206 states to 11206 states and 37554 transitions. [2022-02-15 11:29:19,007 INFO L78 Accepts]: Start accepts. Automaton has 11206 states and 37554 transitions. Word has length 92 [2022-02-15 11:29:19,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:19,007 INFO L470 AbstractCegarLoop]: Abstraction has 11206 states and 37554 transitions. [2022-02-15 11:29:19,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:19,007 INFO L276 IsEmpty]: Start isEmpty. Operand 11206 states and 37554 transitions. [2022-02-15 11:29:19,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:19,025 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:19,025 INFO L514 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] [2022-02-15 11:29:19,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-15 11:29:19,026 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:19,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:19,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2084813346, now seen corresponding path program 13 times [2022-02-15 11:29:19,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:19,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513161037] [2022-02-15 11:29:19,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:19,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:19,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:19,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:19,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513161037] [2022-02-15 11:29:19,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513161037] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:19,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:19,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:19,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883672916] [2022-02-15 11:29:19,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:19,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:19,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:19,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:19,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:19,088 INFO L87 Difference]: Start difference. First operand 11206 states and 37554 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:19,326 INFO L93 Difference]: Finished difference Result 14403 states and 48273 transitions. [2022-02-15 11:29:19,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:19,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:19,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:19,356 INFO L225 Difference]: With dead ends: 14403 [2022-02-15 11:29:19,356 INFO L226 Difference]: Without dead ends: 12966 [2022-02-15 11:29:19,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:29:19,357 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 232 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:19,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 1655 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:19,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12966 states. [2022-02-15 11:29:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12966 to 11253. [2022-02-15 11:29:19,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11253 states, 11252 states have (on average 3.3484713828652684) internal successors, (37677), 11252 states have internal predecessors, (37677), 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) [2022-02-15 11:29:19,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11253 states to 11253 states and 37677 transitions. [2022-02-15 11:29:19,545 INFO L78 Accepts]: Start accepts. Automaton has 11253 states and 37677 transitions. Word has length 92 [2022-02-15 11:29:19,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:19,545 INFO L470 AbstractCegarLoop]: Abstraction has 11253 states and 37677 transitions. [2022-02-15 11:29:19,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:19,545 INFO L276 IsEmpty]: Start isEmpty. Operand 11253 states and 37677 transitions. [2022-02-15 11:29:19,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:19,563 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:19,563 INFO L514 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] [2022-02-15 11:29:19,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-15 11:29:19,563 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:19,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:19,563 INFO L85 PathProgramCache]: Analyzing trace with hash -833949048, now seen corresponding path program 14 times [2022-02-15 11:29:19,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:19,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516793198] [2022-02-15 11:29:19,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:19,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:19,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:19,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:19,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516793198] [2022-02-15 11:29:19,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516793198] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:19,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:19,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:19,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467148797] [2022-02-15 11:29:19,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:19,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:19,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:19,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:19,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:19,662 INFO L87 Difference]: Start difference. First operand 11253 states and 37677 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:19,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:19,889 INFO L93 Difference]: Finished difference Result 14030 states and 46919 transitions. [2022-02-15 11:29:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:29:19,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:19,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:19,919 INFO L225 Difference]: With dead ends: 14030 [2022-02-15 11:29:19,919 INFO L226 Difference]: Without dead ends: 12371 [2022-02-15 11:29:19,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:19,920 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 201 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:19,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1628 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12371 states. [2022-02-15 11:29:20,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12371 to 10995. [2022-02-15 11:29:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10995 states, 10994 states have (on average 3.346734582499545) internal successors, (36794), 10994 states have internal predecessors, (36794), 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) [2022-02-15 11:29:20,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10995 states to 10995 states and 36794 transitions. [2022-02-15 11:29:20,197 INFO L78 Accepts]: Start accepts. Automaton has 10995 states and 36794 transitions. Word has length 92 [2022-02-15 11:29:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:20,197 INFO L470 AbstractCegarLoop]: Abstraction has 10995 states and 36794 transitions. [2022-02-15 11:29:20,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 10995 states and 36794 transitions. [2022-02-15 11:29:20,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:20,215 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:20,215 INFO L514 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] [2022-02-15 11:29:20,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-15 11:29:20,215 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:20,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1834135916, now seen corresponding path program 15 times [2022-02-15 11:29:20,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:20,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887657028] [2022-02-15 11:29:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:20,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:20,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:20,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887657028] [2022-02-15 11:29:20,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887657028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:20,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:20,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:20,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819709786] [2022-02-15 11:29:20,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:20,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:20,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:20,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:20,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:20,284 INFO L87 Difference]: Start difference. First operand 10995 states and 36794 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:20,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:20,530 INFO L93 Difference]: Finished difference Result 14705 states and 49234 transitions. [2022-02-15 11:29:20,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 11:29:20,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:20,559 INFO L225 Difference]: With dead ends: 14705 [2022-02-15 11:29:20,559 INFO L226 Difference]: Without dead ends: 13033 [2022-02-15 11:29:20,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-15 11:29:20,559 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 297 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:20,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 1780 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13033 states. [2022-02-15 11:29:20,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13033 to 10994. [2022-02-15 11:29:20,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10994 states, 10993 states have (on average 3.3425816428636406) internal successors, (36745), 10993 states have internal predecessors, (36745), 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) [2022-02-15 11:29:20,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10994 states to 10994 states and 36745 transitions. [2022-02-15 11:29:20,745 INFO L78 Accepts]: Start accepts. Automaton has 10994 states and 36745 transitions. Word has length 92 [2022-02-15 11:29:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:20,745 INFO L470 AbstractCegarLoop]: Abstraction has 10994 states and 36745 transitions. [2022-02-15 11:29:20,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:20,746 INFO L276 IsEmpty]: Start isEmpty. Operand 10994 states and 36745 transitions. [2022-02-15 11:29:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:20,763 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:20,763 INFO L514 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] [2022-02-15 11:29:20,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-15 11:29:20,763 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1287477024, now seen corresponding path program 16 times [2022-02-15 11:29:20,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:20,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810151424] [2022-02-15 11:29:20,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:20,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:20,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:20,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810151424] [2022-02-15 11:29:20,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810151424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:20,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:20,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:20,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355882362] [2022-02-15 11:29:20,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:20,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:20,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:20,862 INFO L87 Difference]: Start difference. First operand 10994 states and 36745 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:21,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:21,109 INFO L93 Difference]: Finished difference Result 14448 states and 48384 transitions. [2022-02-15 11:29:21,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:21,110 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:21,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:21,141 INFO L225 Difference]: With dead ends: 14448 [2022-02-15 11:29:21,142 INFO L226 Difference]: Without dead ends: 13011 [2022-02-15 11:29:21,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:21,142 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 237 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:21,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1608 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13011 states. [2022-02-15 11:29:21,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13011 to 11041. [2022-02-15 11:29:21,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11041 states, 11040 states have (on average 3.339492753623188) internal successors, (36868), 11040 states have internal predecessors, (36868), 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) [2022-02-15 11:29:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11041 states to 11041 states and 36868 transitions. [2022-02-15 11:29:21,344 INFO L78 Accepts]: Start accepts. Automaton has 11041 states and 36868 transitions. Word has length 92 [2022-02-15 11:29:21,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:21,344 INFO L470 AbstractCegarLoop]: Abstraction has 11041 states and 36868 transitions. [2022-02-15 11:29:21,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 11041 states and 36868 transitions. [2022-02-15 11:29:21,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:21,363 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:21,363 INFO L514 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] [2022-02-15 11:29:21,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-15 11:29:21,363 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:21,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:21,363 INFO L85 PathProgramCache]: Analyzing trace with hash 88727878, now seen corresponding path program 17 times [2022-02-15 11:29:21,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:21,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446230672] [2022-02-15 11:29:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:21,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:21,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:21,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446230672] [2022-02-15 11:29:21,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446230672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:21,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:21,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:21,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767910237] [2022-02-15 11:29:21,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:21,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:21,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:21,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:21,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:21,429 INFO L87 Difference]: Start difference. First operand 11041 states and 36868 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:21,671 INFO L93 Difference]: Finished difference Result 14169 states and 47370 transitions. [2022-02-15 11:29:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:29:21,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:21,699 INFO L225 Difference]: With dead ends: 14169 [2022-02-15 11:29:21,699 INFO L226 Difference]: Without dead ends: 12635 [2022-02-15 11:29:21,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:29:21,700 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 190 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:21,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1746 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:21,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12635 states. [2022-02-15 11:29:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12635 to 10947. [2022-02-15 11:29:21,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10947 states, 10946 states have (on average 3.341403252329618) internal successors, (36575), 10946 states have internal predecessors, (36575), 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) [2022-02-15 11:29:21,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10947 states to 10947 states and 36575 transitions. [2022-02-15 11:29:21,881 INFO L78 Accepts]: Start accepts. Automaton has 10947 states and 36575 transitions. Word has length 92 [2022-02-15 11:29:21,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:21,881 INFO L470 AbstractCegarLoop]: Abstraction has 10947 states and 36575 transitions. [2022-02-15 11:29:21,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 10947 states and 36575 transitions. [2022-02-15 11:29:21,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:21,903 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:21,903 INFO L514 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] [2022-02-15 11:29:21,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-15 11:29:21,903 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:21,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:21,904 INFO L85 PathProgramCache]: Analyzing trace with hash 857509902, now seen corresponding path program 18 times [2022-02-15 11:29:21,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:21,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487971822] [2022-02-15 11:29:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:21,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:21,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:21,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487971822] [2022-02-15 11:29:21,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487971822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:21,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:21,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:21,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793719182] [2022-02-15 11:29:21,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:21,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:21,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:21,971 INFO L87 Difference]: Start difference. First operand 10947 states and 36575 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:22,183 INFO L93 Difference]: Finished difference Result 14555 states and 48625 transitions. [2022-02-15 11:29:22,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:29:22,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:22,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:22,212 INFO L225 Difference]: With dead ends: 14555 [2022-02-15 11:29:22,212 INFO L226 Difference]: Without dead ends: 12877 [2022-02-15 11:29:22,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:29:22,214 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 260 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:22,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1429 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:22,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12877 states. [2022-02-15 11:29:22,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12877 to 10946. [2022-02-15 11:29:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10946 states, 10945 states have (on average 3.337231612608497) internal successors, (36526), 10945 states have internal predecessors, (36526), 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) [2022-02-15 11:29:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10946 states to 10946 states and 36526 transitions. [2022-02-15 11:29:22,396 INFO L78 Accepts]: Start accepts. Automaton has 10946 states and 36526 transitions. Word has length 92 [2022-02-15 11:29:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:22,396 INFO L470 AbstractCegarLoop]: Abstraction has 10946 states and 36526 transitions. [2022-02-15 11:29:22,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 10946 states and 36526 transitions. [2022-02-15 11:29:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:22,415 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:22,415 INFO L514 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] [2022-02-15 11:29:22,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-15 11:29:22,415 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1797398106, now seen corresponding path program 19 times [2022-02-15 11:29:22,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:22,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290660836] [2022-02-15 11:29:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:22,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:22,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:22,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290660836] [2022-02-15 11:29:22,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290660836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:22,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:22,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:22,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086238866] [2022-02-15 11:29:22,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:22,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:22,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:22,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:22,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:22,515 INFO L87 Difference]: Start difference. First operand 10946 states and 36526 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:22,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:22,730 INFO L93 Difference]: Finished difference Result 13953 states and 46561 transitions. [2022-02-15 11:29:22,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:29:22,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:22,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:22,758 INFO L225 Difference]: With dead ends: 13953 [2022-02-15 11:29:22,758 INFO L226 Difference]: Without dead ends: 12516 [2022-02-15 11:29:22,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:29:22,758 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 227 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:22,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1593 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:22,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12516 states. [2022-02-15 11:29:22,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12516 to 10945. [2022-02-15 11:29:22,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10945 states, 10944 states have (on average 3.333059210526316) internal successors, (36477), 10944 states have internal predecessors, (36477), 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) [2022-02-15 11:29:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10945 states to 10945 states and 36477 transitions. [2022-02-15 11:29:22,956 INFO L78 Accepts]: Start accepts. Automaton has 10945 states and 36477 transitions. Word has length 92 [2022-02-15 11:29:22,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:22,956 INFO L470 AbstractCegarLoop]: Abstraction has 10945 states and 36477 transitions. [2022-02-15 11:29:22,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:22,956 INFO L276 IsEmpty]: Start isEmpty. Operand 10945 states and 36477 transitions. [2022-02-15 11:29:22,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:22,974 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:22,974 INFO L514 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] [2022-02-15 11:29:22,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-15 11:29:22,974 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:22,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:22,975 INFO L85 PathProgramCache]: Analyzing trace with hash -421193204, now seen corresponding path program 20 times [2022-02-15 11:29:22,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:22,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792299164] [2022-02-15 11:29:22,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:22,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:23,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:23,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792299164] [2022-02-15 11:29:23,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792299164] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:23,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:23,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:29:23,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305857091] [2022-02-15 11:29:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:23,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:29:23,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:29:23,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:29:23,042 INFO L87 Difference]: Start difference. First operand 10945 states and 36477 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:23,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:23,292 INFO L93 Difference]: Finished difference Result 13365 states and 44487 transitions. [2022-02-15 11:29:23,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:29:23,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:23,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:23,316 INFO L225 Difference]: With dead ends: 13365 [2022-02-15 11:29:23,316 INFO L226 Difference]: Without dead ends: 11148 [2022-02-15 11:29:23,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:29:23,316 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 202 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:23,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 1703 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:23,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11148 states. [2022-02-15 11:29:23,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11148 to 9811. [2022-02-15 11:29:23,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9811 states, 9810 states have (on average 3.3493374108053007) internal successors, (32857), 9810 states have internal predecessors, (32857), 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) [2022-02-15 11:29:23,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9811 states to 9811 states and 32857 transitions. [2022-02-15 11:29:23,468 INFO L78 Accepts]: Start accepts. Automaton has 9811 states and 32857 transitions. Word has length 92 [2022-02-15 11:29:23,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:23,468 INFO L470 AbstractCegarLoop]: Abstraction has 9811 states and 32857 transitions. [2022-02-15 11:29:23,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2022-02-15 11:29:23,469 INFO L276 IsEmpty]: Start isEmpty. Operand 9811 states and 32857 transitions. [2022-02-15 11:29:23,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:23,484 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:23,484 INFO L514 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] [2022-02-15 11:29:23,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-15 11:29:23,485 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:23,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:23,485 INFO L85 PathProgramCache]: Analyzing trace with hash 847164500, now seen corresponding path program 1 times [2022-02-15 11:29:23,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:23,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219659988] [2022-02-15 11:29:23,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:23,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:23,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:23,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:23,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219659988] [2022-02-15 11:29:23,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219659988] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:23,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:23,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 11:29:23,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803830083] [2022-02-15 11:29:23,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:23,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 11:29:23,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:23,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 11:29:23,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:29:23,530 INFO L87 Difference]: Start difference. First operand 9811 states and 32857 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-02-15 11:29:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:23,637 INFO L93 Difference]: Finished difference Result 12494 states and 41514 transitions. [2022-02-15 11:29:23,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:29:23,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:23,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:23,650 INFO L225 Difference]: With dead ends: 12494 [2022-02-15 11:29:23,650 INFO L226 Difference]: Without dead ends: 6451 [2022-02-15 11:29:23,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:29:23,651 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 100 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:23,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 1044 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 11:29:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6451 states. [2022-02-15 11:29:23,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6451 to 6451. [2022-02-15 11:29:23,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6451 states, 6450 states have (on average 3.293953488372093) internal successors, (21246), 6450 states have internal predecessors, (21246), 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) [2022-02-15 11:29:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6451 states to 6451 states and 21246 transitions. [2022-02-15 11:29:23,736 INFO L78 Accepts]: Start accepts. Automaton has 6451 states and 21246 transitions. Word has length 92 [2022-02-15 11:29:23,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:23,736 INFO L470 AbstractCegarLoop]: Abstraction has 6451 states and 21246 transitions. [2022-02-15 11:29:23,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-02-15 11:29:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 6451 states and 21246 transitions. [2022-02-15 11:29:23,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 11:29:23,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:23,745 INFO L514 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] [2022-02-15 11:29:23,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-15 11:29:23,745 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-15 11:29:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:23,746 INFO L85 PathProgramCache]: Analyzing trace with hash 866310292, now seen corresponding path program 1 times [2022-02-15 11:29:23,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:23,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307104408] [2022-02-15 11:29:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:23,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:23,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:23,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307104408] [2022-02-15 11:29:23,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307104408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:23,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:23,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 11:29:23,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122396603] [2022-02-15 11:29:23,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:23,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 11:29:23,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:23,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 11:29:23,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 11:29:23,782 INFO L87 Difference]: Start difference. First operand 6451 states and 21246 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-02-15 11:29:23,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:23,862 INFO L93 Difference]: Finished difference Result 6442 states and 21237 transitions. [2022-02-15 11:29:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 11:29:23,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2022-02-15 11:29:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:23,862 INFO L225 Difference]: With dead ends: 6442 [2022-02-15 11:29:23,862 INFO L226 Difference]: Without dead ends: 0 [2022-02-15 11:29:23,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-15 11:29:23,863 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 100 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:23,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 946 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 11:29:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-15 11:29:23,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-15 11:29:23,863 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) [2022-02-15 11:29:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-15 11:29:23,863 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2022-02-15 11:29:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:23,863 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-15 11:29:23,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-02-15 11:29:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-15 11:29:23,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-15 11:29:23,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-15 11:29:23,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-15 11:29:23,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-15 11:29:23,866 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-15 11:29:23,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-15 11:29:23,868 INFO L732 BasicCegarLoop]: Path program histogram: [20, 20, 12, 10, 9, 6, 1, 1, 1] [2022-02-15 11:29:23,869 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-15 11:29:23,869 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 11:29:23,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 11:29:23 BasicIcfg [2022-02-15 11:29:23,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 11:29:23,871 INFO L158 Benchmark]: Toolchain (without parser) took 65887.93ms. Allocated memory was 182.5MB in the beginning and 7.7GB in the end (delta: 7.6GB). Free memory was 126.6MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. [2022-02-15 11:29:23,871 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 11:29:23,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.29ms. Allocated memory was 182.5MB in the beginning and 277.9MB in the end (delta: 95.4MB). Free memory was 126.4MB in the beginning and 249.8MB in the end (delta: -123.4MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-02-15 11:29:23,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.97ms. Allocated memory is still 277.9MB. Free memory was 249.8MB in the beginning and 248.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 11:29:23,871 INFO L158 Benchmark]: Boogie Preprocessor took 20.76ms. Allocated memory is still 277.9MB. Free memory was 248.3MB in the beginning and 247.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 11:29:23,871 INFO L158 Benchmark]: RCFGBuilder took 292.43ms. Allocated memory is still 277.9MB. Free memory was 246.7MB in the beginning and 232.5MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-15 11:29:23,871 INFO L158 Benchmark]: TraceAbstraction took 65354.57ms. Allocated memory was 277.9MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 232.0MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 4.4GB. Max. memory is 8.0GB. [2022-02-15 11:29:23,872 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 182.5MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 194.29ms. Allocated memory was 182.5MB in the beginning and 277.9MB in the end (delta: 95.4MB). Free memory was 126.4MB in the beginning and 249.8MB in the end (delta: -123.4MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.97ms. Allocated memory is still 277.9MB. Free memory was 249.8MB in the beginning and 248.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.76ms. Allocated memory is still 277.9MB. Free memory was 248.3MB in the beginning and 247.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 292.43ms. Allocated memory is still 277.9MB. Free memory was 246.7MB in the beginning and 232.5MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 65354.57ms. Allocated memory was 277.9MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 232.0MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 4.4GB. 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: 77]: 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, 156 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 65.2s, OverallIterations: 80, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 2.3s, AutomataDifference: 27.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19319 SdHoareTripleChecker+Valid, 7.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19319 mSDsluCounter, 88500 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75834 mSDsCounter, 348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13464 IncrementalHoareTripleChecker+Invalid, 13812 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 348 mSolverCounterUnsat, 17276 mSDtfsCounter, 13464 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1727 GetRequests, 689 SyntacticMatches, 0 SemanticMatches, 1038 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3642 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16748occurred in iteration=5, InterpolantAutomatonStates: 1000, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 28.3s AutomataMinimizationTime, 80 MinimizatonAttempts, 564511 StatesRemovedByMinimization, 78 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 7282 NumberOfCodeBlocks, 7282 NumberOfCodeBlocksAsserted, 80 NumberOfCheckSat, 7202 ConstructedInterpolants, 0 QuantifiedInterpolants, 35063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 80 InterpolantComputations, 80 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-15 11:29:23,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...