/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-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 02:19:02,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 02:19:02,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 02:19:02,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 02:19:02,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 02:19:02,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 02:19:02,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 02:19:02,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 02:19:02,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 02:19:03,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 02:19:03,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 02:19:03,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 02:19:03,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 02:19:03,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 02:19:03,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 02:19:03,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 02:19:03,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 02:19:03,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 02:19:03,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 02:19:03,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 02:19:03,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 02:19:03,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 02:19:03,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 02:19:03,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 02:19:03,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 02:19:03,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 02:19:03,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 02:19:03,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 02:19:03,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 02:19:03,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-02-10 02:19:03,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 02:19:03,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 02:19:03,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 02:19:03,034 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-10 02:19:03,067 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 02:19:03,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 02:19:03,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 02:19:03,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 02:19:03,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 02:19:03,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 02:19:03,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 02:19:03,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 02:19:03,069 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 02:19:03,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 02:19:03,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 02:19:03,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 02:19:03,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 02:19:03,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 02:19:03,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 02:19:03,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 02:19:03,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 02:19:03,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 02:19:03,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 02:19:03,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 02:19:03,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 02:19:03,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 02:19:03,072 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 02:19:03,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 02:19:03,072 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 02:19:03,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 02:19:03,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 02:19:03,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 02:19:03,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 02:19:03,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 02:19:03,310 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 02:19:03,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2022-02-10 02:19:03,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258c2a202/1a056e10b8cb45e4a68f7dff73ad2236/FLAG576fc86c7 [2022-02-10 02:19:03,759 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 02:19:03,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2022-02-10 02:19:03,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258c2a202/1a056e10b8cb45e4a68f7dff73ad2236/FLAG576fc86c7 [2022-02-10 02:19:03,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258c2a202/1a056e10b8cb45e4a68f7dff73ad2236 [2022-02-10 02:19:03,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 02:19:03,781 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 02:19:03,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 02:19:03,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 02:19:03,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 02:19:03,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 02:19:03" (1/1) ... [2022-02-10 02:19:03,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f084077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:03, skipping insertion in model container [2022-02-10 02:19:03,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 02:19:03" (1/1) ... [2022-02-10 02:19:03,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 02:19:03,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 02:19:03,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2476,2489] [2022-02-10 02:19:03,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 02:19:03,989 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 02:19:04,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2476,2489] [2022-02-10 02:19:04,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 02:19:04,029 INFO L208 MainTranslator]: Completed translation [2022-02-10 02:19:04,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04 WrapperNode [2022-02-10 02:19:04,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 02:19:04,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 02:19:04,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 02:19:04,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 02:19:04,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,066 INFO L137 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-02-10 02:19:04,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 02:19:04,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 02:19:04,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 02:19:04,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 02:19:04,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 02:19:04,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 02:19:04,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 02:19:04,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 02:19:04,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (1/1) ... [2022-02-10 02:19:04,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 02:19:04,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:19:04,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 02:19:04,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 02:19:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 02:19:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 02:19:04,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 02:19:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 02:19:04,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 02:19:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 02:19:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 02:19:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 02:19:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 02:19:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 02:19:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 02:19:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 02:19:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 02:19:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 02:19:04,162 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 02:19:04,229 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 02:19:04,231 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 02:19:04,453 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 02:19:04,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 02:19:04,505 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 02:19:04,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 02:19:04 BoogieIcfgContainer [2022-02-10 02:19:04,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 02:19:04,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 02:19:04,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 02:19:04,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 02:19:04,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 02:19:03" (1/3) ... [2022-02-10 02:19:04,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3edb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 02:19:04, skipping insertion in model container [2022-02-10 02:19:04,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:19:04" (2/3) ... [2022-02-10 02:19:04,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3edb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 02:19:04, skipping insertion in model container [2022-02-10 02:19:04,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 02:19:04" (3/3) ... [2022-02-10 02:19:04,517 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2022-02-10 02:19:04,521 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 02:19:04,521 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 02:19:04,521 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 02:19:04,521 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 02:19:04,572 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,573 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,574 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,574 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,575 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,575 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,581 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,582 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,584 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,584 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,585 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,585 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,586 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,586 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,588 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,589 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,595 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,597 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:19:04,603 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 02:19:04,646 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 02:19:04,652 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 [2022-02-10 02:19:04,653 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 02:19:04,663 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 88 transitions, 192 flow [2022-02-10 02:19:04,710 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 336 states, 335 states have (on average 2.582089552238806) internal successors, (865), 335 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:30,833 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1426226 transitions and produced 567157 states. [2022-02-10 02:19:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 567157 states, 456641 states have (on average 1.345906302763002) internal successors, (614596), 567156 states have internal predecessors, (614596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:42,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-10 02:19:42,091 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:19:42,092 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] [2022-02-10 02:19:42,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:19:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:19:42,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1703316571, now seen corresponding path program 1 times [2022-02-10 02:19:42,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:19:42,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812903537] [2022-02-10 02:19:42,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:19:42,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:19:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:19:42,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:42,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:19:42,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812903537] [2022-02-10 02:19:42,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812903537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:19:42,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:19:42,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 02:19:42,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702659908] [2022-02-10 02:19:42,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:19:42,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 02:19:42,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:19:42,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 02:19:42,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 02:19:47,265 INFO L87 Difference]: Start difference. First operand has 567157 states, 456641 states have (on average 1.345906302763002) internal successors, (614596), 567156 states have internal predecessors, (614596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:19:49,841 INFO L93 Difference]: Finished difference Result 119008 states and 135613 transitions. [2022-02-10 02:19:49,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 02:19:49,844 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-02-10 02:19:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:19:49,934 INFO L225 Difference]: With dead ends: 119008 [2022-02-10 02:19:49,935 INFO L226 Difference]: Without dead ends: 17560 [2022-02-10 02:19:49,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 02:19:49,939 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:19:49,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:19:49,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17560 states. [2022-02-10 02:19:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17560 to 93. [2022-02-10 02:19:50,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.184782608695652) internal successors, (109), 92 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:50,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2022-02-10 02:19:50,121 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 64 [2022-02-10 02:19:50,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:19:50,122 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2022-02-10 02:19:50,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:50,122 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2022-02-10 02:19:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-10 02:19:50,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:19:50,126 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] [2022-02-10 02:19:50,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 02:19:50,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:19:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:19:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1040236633, now seen corresponding path program 1 times [2022-02-10 02:19:50,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:19:50,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973634863] [2022-02-10 02:19:50,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:19:50,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:19:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:19:50,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:50,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:19:50,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973634863] [2022-02-10 02:19:50,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973634863] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:19:50,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:19:50,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 02:19:50,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544521612] [2022-02-10 02:19:50,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:19:50,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 02:19:50,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:19:50,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 02:19:50,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-10 02:19:50,349 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:50,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:19:50,464 INFO L93 Difference]: Finished difference Result 120 states and 148 transitions. [2022-02-10 02:19:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 02:19:50,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-02-10 02:19:50,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:19:50,465 INFO L225 Difference]: With dead ends: 120 [2022-02-10 02:19:50,466 INFO L226 Difference]: Without dead ends: 120 [2022-02-10 02:19:50,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-10 02:19:50,467 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 61 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:19:50,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 237 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 02:19:50,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-02-10 02:19:50,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 100. [2022-02-10 02:19:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2121212121212122) internal successors, (120), 99 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:50,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 120 transitions. [2022-02-10 02:19:50,470 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 120 transitions. Word has length 64 [2022-02-10 02:19:50,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:19:50,471 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 120 transitions. [2022-02-10 02:19:50,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 120 transitions. [2022-02-10 02:19:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-10 02:19:50,471 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:19:50,471 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] [2022-02-10 02:19:50,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 02:19:50,472 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:19:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:19:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash -894117372, now seen corresponding path program 1 times [2022-02-10 02:19:50,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:19:50,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609941010] [2022-02-10 02:19:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:19:50,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:19:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:19:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:50,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:19:50,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609941010] [2022-02-10 02:19:50,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609941010] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:19:50,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743927830] [2022-02-10 02:19:50,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:19:50,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:19:50,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:19:50,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:19:50,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 02:19:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:19:50,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-10 02:19:50,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:19:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 02:19:51,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 02:19:51,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743927830] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:19:51,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 02:19:51,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-02-10 02:19:51,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669900610] [2022-02-10 02:19:51,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:19:51,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 02:19:51,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:19:51,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 02:19:51,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 02:19:51,067 INFO L87 Difference]: Start difference. First operand 100 states and 120 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:19:51,244 INFO L93 Difference]: Finished difference Result 107 states and 129 transitions. [2022-02-10 02:19:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 02:19:51,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-02-10 02:19:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:19:51,245 INFO L225 Difference]: With dead ends: 107 [2022-02-10 02:19:51,245 INFO L226 Difference]: Without dead ends: 107 [2022-02-10 02:19:51,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-02-10 02:19:51,246 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 51 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:19:51,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 218 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 02:19:51,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-02-10 02:19:51,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2022-02-10 02:19:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2121212121212122) internal successors, (120), 99 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 120 transitions. [2022-02-10 02:19:51,250 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 120 transitions. Word has length 68 [2022-02-10 02:19:51,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:19:51,250 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 120 transitions. [2022-02-10 02:19:51,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 120 transitions. [2022-02-10 02:19:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-10 02:19:51,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:19:51,251 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] [2022-02-10 02:19:51,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 02:19:51,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:19:51,463 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:19:51,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:19:51,464 INFO L85 PathProgramCache]: Analyzing trace with hash 997065092, now seen corresponding path program 2 times [2022-02-10 02:19:51,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:19:51,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815629613] [2022-02-10 02:19:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:19:51,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:19:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:19:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:51,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:19:51,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815629613] [2022-02-10 02:19:51,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815629613] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:19:51,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350340569] [2022-02-10 02:19:51,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 02:19:51,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:19:51,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:19:51,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:19:51,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 02:19:51,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 02:19:51,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:19:51,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 26 conjunts are in the unsatisfiable core [2022-02-10 02:19:51,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:19:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:53,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:19:54,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:54,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350340569] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-10 02:19:54,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-10 02:19:54,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11, 15] total 29 [2022-02-10 02:19:54,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891366584] [2022-02-10 02:19:54,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:19:54,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 02:19:54,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:19:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 02:19:54,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2022-02-10 02:19:54,250 INFO L87 Difference]: Start difference. First operand 100 states and 120 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:55,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:19:55,675 INFO L93 Difference]: Finished difference Result 237 states and 288 transitions. [2022-02-10 02:19:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-10 02:19:55,676 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-02-10 02:19:55,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:19:55,677 INFO L225 Difference]: With dead ends: 237 [2022-02-10 02:19:55,677 INFO L226 Difference]: Without dead ends: 217 [2022-02-10 02:19:55,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=350, Invalid=1456, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 02:19:55,678 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 298 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 02:19:55,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 711 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 355 Invalid, 0 Unknown, 80 Unchecked, 0.4s Time] [2022-02-10 02:19:55,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-10 02:19:55,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 113. [2022-02-10 02:19:55,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.2678571428571428) internal successors, (142), 112 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 142 transitions. [2022-02-10 02:19:55,682 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 142 transitions. Word has length 68 [2022-02-10 02:19:55,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:19:55,682 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 142 transitions. [2022-02-10 02:19:55,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:55,682 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 142 transitions. [2022-02-10 02:19:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-10 02:19:55,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:19:55,683 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] [2022-02-10 02:19:55,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 02:19:55,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-10 02:19:55,916 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:19:55,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:19:55,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1210884476, now seen corresponding path program 3 times [2022-02-10 02:19:55,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:19:55,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298018284] [2022-02-10 02:19:55,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:19:55,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:19:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:19:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:56,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:19:56,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298018284] [2022-02-10 02:19:56,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298018284] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:19:56,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:19:56,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 02:19:56,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082687249] [2022-02-10 02:19:56,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:19:56,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 02:19:56,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:19:56,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 02:19:56,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 02:19:56,037 INFO L87 Difference]: Start difference. First operand 113 states and 142 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:56,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:19:56,113 INFO L93 Difference]: Finished difference Result 141 states and 172 transitions. [2022-02-10 02:19:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 02:19:56,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-02-10 02:19:56,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:19:56,114 INFO L225 Difference]: With dead ends: 141 [2022-02-10 02:19:56,114 INFO L226 Difference]: Without dead ends: 141 [2022-02-10 02:19:56,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-10 02:19:56,115 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 58 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:19:56,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 271 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 02:19:56,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-02-10 02:19:56,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 119. [2022-02-10 02:19:56,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 118 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:56,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 149 transitions. [2022-02-10 02:19:56,118 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 149 transitions. Word has length 68 [2022-02-10 02:19:56,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:19:56,119 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 149 transitions. [2022-02-10 02:19:56,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:19:56,119 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 149 transitions. [2022-02-10 02:19:56,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-10 02:19:56,120 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:19:56,120 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] [2022-02-10 02:19:56,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 02:19:56,121 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:19:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:19:56,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1552556683, now seen corresponding path program 1 times [2022-02-10 02:19:56,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:19:56,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824939149] [2022-02-10 02:19:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:19:56,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:19:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:19:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:56,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:19:56,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824939149] [2022-02-10 02:19:56,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824939149] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:19:56,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119761127] [2022-02-10 02:19:56,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:19:56,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:19:56,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:19:56,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:19:56,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 02:19:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:19:56,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-10 02:19:56,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:19:57,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:19:57,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:20:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:00,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119761127] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:20:00,310 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:20:00,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 17] total 36 [2022-02-10 02:20:00,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848093316] [2022-02-10 02:20:00,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:20:00,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-10 02:20:00,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:20:00,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-10 02:20:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 02:20:00,312 INFO L87 Difference]: Start difference. First operand 119 states and 149 transitions. Second operand has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 36 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:14,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:20:14,827 INFO L93 Difference]: Finished difference Result 536 states and 653 transitions. [2022-02-10 02:20:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-02-10 02:20:14,827 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 36 states have internal predecessors, (151), 0 states have call successors, (0), 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 71 [2022-02-10 02:20:14,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:20:14,829 INFO L225 Difference]: With dead ends: 536 [2022-02-10 02:20:14,829 INFO L226 Difference]: Without dead ends: 348 [2022-02-10 02:20:14,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3788 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=1913, Invalid=10077, Unknown=0, NotChecked=0, Total=11990 [2022-02-10 02:20:14,833 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 980 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-10 02:20:14,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 1251 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1137 Invalid, 0 Unknown, 96 Unchecked, 3.2s Time] [2022-02-10 02:20:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-02-10 02:20:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 172. [2022-02-10 02:20:14,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.3508771929824561) internal successors, (231), 171 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:14,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2022-02-10 02:20:14,838 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 71 [2022-02-10 02:20:14,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:20:14,838 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2022-02-10 02:20:14,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 36 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:14,839 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2022-02-10 02:20:14,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-10 02:20:14,846 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:20:14,846 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] [2022-02-10 02:20:14,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-10 02:20:15,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:20:15,064 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:20:15,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:20:15,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1305025439, now seen corresponding path program 2 times [2022-02-10 02:20:15,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:20:15,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466265690] [2022-02-10 02:20:15,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:20:15,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:20:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:20:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:15,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:20:15,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466265690] [2022-02-10 02:20:15,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466265690] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:20:15,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341491115] [2022-02-10 02:20:15,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 02:20:15,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:20:15,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:20:15,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:20:15,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 02:20:15,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 02:20:15,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:20:15,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-10 02:20:15,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:20:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:16,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:20:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:16,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341491115] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:20:16,705 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:20:16,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2022-02-10 02:20:16,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741471969] [2022-02-10 02:20:16,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:20:16,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-10 02:20:16,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:20:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-10 02:20:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2022-02-10 02:20:16,708 INFO L87 Difference]: Start difference. First operand 172 states and 231 transitions. Second operand has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:18,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:20:18,664 INFO L93 Difference]: Finished difference Result 364 states and 492 transitions. [2022-02-10 02:20:18,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 02:20:18,665 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 0 states have call successors, (0), 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 71 [2022-02-10 02:20:18,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:20:18,666 INFO L225 Difference]: With dead ends: 364 [2022-02-10 02:20:18,666 INFO L226 Difference]: Without dead ends: 364 [2022-02-10 02:20:18,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 122 SyntacticMatches, 6 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=614, Invalid=3168, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 02:20:18,668 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 512 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 02:20:18,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 985 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 02:20:18,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-02-10 02:20:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 226. [2022-02-10 02:20:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4044444444444444) internal successors, (316), 225 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 316 transitions. [2022-02-10 02:20:18,673 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 316 transitions. Word has length 71 [2022-02-10 02:20:18,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:20:18,673 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 316 transitions. [2022-02-10 02:20:18,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:18,673 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 316 transitions. [2022-02-10 02:20:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-10 02:20:18,674 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:20:18,674 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:20:18,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 02:20:18,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:20:18,892 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:20:18,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:20:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -643449394, now seen corresponding path program 3 times [2022-02-10 02:20:18,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:20:18,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988092481] [2022-02-10 02:20:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:20:18,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:20:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:20:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:19,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:20:19,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988092481] [2022-02-10 02:20:19,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988092481] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:20:19,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347410150] [2022-02-10 02:20:19,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 02:20:19,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:20:19,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:20:19,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:20:19,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 02:20:20,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-10 02:20:20,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:20:20,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 31 conjunts are in the unsatisfiable core [2022-02-10 02:20:20,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:20:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:20,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:20:25,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:25,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347410150] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:20:25,951 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:20:25,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 19] total 43 [2022-02-10 02:20:25,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182920323] [2022-02-10 02:20:25,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:20:25,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-10 02:20:25,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:20:25,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-10 02:20:25,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=1469, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 02:20:25,953 INFO L87 Difference]: Start difference. First operand 226 states and 316 transitions. Second operand has 43 states, 43 states have (on average 3.813953488372093) internal successors, (164), 43 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:20:45,565 INFO L93 Difference]: Finished difference Result 665 states and 865 transitions. [2022-02-10 02:20:45,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-02-10 02:20:45,565 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.813953488372093) internal successors, (164), 43 states have internal predecessors, (164), 0 states have call successors, (0), 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 74 [2022-02-10 02:20:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:20:45,567 INFO L225 Difference]: With dead ends: 665 [2022-02-10 02:20:45,567 INFO L226 Difference]: Without dead ends: 543 [2022-02-10 02:20:45,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 120 SyntacticMatches, 4 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4615 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=2000, Invalid=12520, Unknown=0, NotChecked=0, Total=14520 [2022-02-10 02:20:45,570 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 861 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-10 02:20:45,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [861 Valid, 1757 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-10 02:20:45,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-02-10 02:20:45,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 274. [2022-02-10 02:20:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.4542124542124542) internal successors, (397), 273 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:45,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 397 transitions. [2022-02-10 02:20:45,575 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 397 transitions. Word has length 74 [2022-02-10 02:20:45,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:20:45,575 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 397 transitions. [2022-02-10 02:20:45,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.813953488372093) internal successors, (164), 43 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:20:45,576 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 397 transitions. [2022-02-10 02:20:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-10 02:20:45,576 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:20:45,576 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:20:45,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 02:20:45,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:20:45,782 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:20:45,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:20:45,783 INFO L85 PathProgramCache]: Analyzing trace with hash 721470968, now seen corresponding path program 4 times [2022-02-10 02:20:45,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:20:45,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456987919] [2022-02-10 02:20:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:20:45,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:20:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:20:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:46,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:20:46,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456987919] [2022-02-10 02:20:46,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456987919] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:20:46,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773074180] [2022-02-10 02:20:46,388 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 02:20:46,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:20:46,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:20:46,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:20:46,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 02:20:46,570 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 02:20:46,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:20:46,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 31 conjunts are in the unsatisfiable core [2022-02-10 02:20:46,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:20:48,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:48,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:20:50,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:20:50,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773074180] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:20:50,380 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:20:50,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 18] total 41 [2022-02-10 02:20:50,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190286878] [2022-02-10 02:20:50,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:20:50,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-02-10 02:20:50,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:20:50,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-02-10 02:20:50,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1342, Unknown=0, NotChecked=0, Total=1640 [2022-02-10 02:20:50,382 INFO L87 Difference]: Start difference. First operand 274 states and 397 transitions. Second operand has 41 states, 41 states have (on average 4.0) internal successors, (164), 41 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:21:09,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:21:09,683 INFO L93 Difference]: Finished difference Result 702 states and 926 transitions. [2022-02-10 02:21:09,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-10 02:21:09,684 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 4.0) internal successors, (164), 41 states have internal predecessors, (164), 0 states have call successors, (0), 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 74 [2022-02-10 02:21:09,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:21:09,686 INFO L225 Difference]: With dead ends: 702 [2022-02-10 02:21:09,686 INFO L226 Difference]: Without dead ends: 575 [2022-02-10 02:21:09,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 120 SyntacticMatches, 4 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4590 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=1915, Invalid=11657, Unknown=0, NotChecked=0, Total=13572 [2022-02-10 02:21:09,690 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 1088 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:21:09,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 1504 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-10 02:21:09,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-02-10 02:21:09,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 331. [2022-02-10 02:21:09,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 1.4878787878787878) internal successors, (491), 330 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:21:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 491 transitions. [2022-02-10 02:21:09,697 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 491 transitions. Word has length 74 [2022-02-10 02:21:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:21:09,697 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 491 transitions. [2022-02-10 02:21:09,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.0) internal successors, (164), 41 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:21:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 491 transitions. [2022-02-10 02:21:09,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-10 02:21:09,698 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:21:09,698 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:21:09,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 02:21:09,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:21:09,899 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:21:09,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:21:09,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1775339608, now seen corresponding path program 5 times [2022-02-10 02:21:09,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:21:09,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806778483] [2022-02-10 02:21:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:21:09,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:21:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:21:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:21:10,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:21:10,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806778483] [2022-02-10 02:21:10,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806778483] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:21:10,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469650516] [2022-02-10 02:21:10,709 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 02:21:10,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:21:10,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:21:10,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:21:10,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 02:21:10,802 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-02-10 02:21:10,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:21:10,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-10 02:21:10,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:21:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:21:12,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:21:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:21:14,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469650516] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:21:14,383 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:21:14,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22, 20] total 47 [2022-02-10 02:21:14,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665059021] [2022-02-10 02:21:14,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:21:14,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-02-10 02:21:14,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:21:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-02-10 02:21:14,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=1815, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 02:21:14,385 INFO L87 Difference]: Start difference. First operand 331 states and 491 transitions. Second operand has 47 states, 47 states have (on average 3.8085106382978724) internal successors, (179), 47 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:21:49,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:21:49,329 INFO L93 Difference]: Finished difference Result 957 states and 1266 transitions. [2022-02-10 02:21:49,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-02-10 02:21:49,330 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.8085106382978724) internal successors, (179), 47 states have internal predecessors, (179), 0 states have call successors, (0), 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 75 [2022-02-10 02:21:49,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:21:49,332 INFO L225 Difference]: With dead ends: 957 [2022-02-10 02:21:49,332 INFO L226 Difference]: Without dead ends: 857 [2022-02-10 02:21:49,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11198 ImplicationChecksByTransitivity, 31.7s TimeCoverageRelationStatistics Valid=4350, Invalid=27153, Unknown=3, NotChecked=0, Total=31506 [2022-02-10 02:21:49,337 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 1635 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-10 02:21:49,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1635 Valid, 1765 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-10 02:21:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-02-10 02:21:49,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 402. [2022-02-10 02:21:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 1.5187032418952617) internal successors, (609), 401 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:21:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 609 transitions. [2022-02-10 02:21:49,344 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 609 transitions. Word has length 75 [2022-02-10 02:21:49,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:21:49,344 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 609 transitions. [2022-02-10 02:21:49,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.8085106382978724) internal successors, (179), 47 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:21:49,344 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 609 transitions. [2022-02-10 02:21:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-10 02:21:49,345 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:21:49,345 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:21:49,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 02:21:49,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:21:49,556 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:21:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:21:49,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1245477860, now seen corresponding path program 6 times [2022-02-10 02:21:49,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:21:49,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147604089] [2022-02-10 02:21:49,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:21:49,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:21:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:21:50,001 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:21:50,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:21:50,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147604089] [2022-02-10 02:21:50,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147604089] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:21:50,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864061705] [2022-02-10 02:21:50,001 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 02:21:50,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:21:50,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:21:50,003 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:21:50,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 02:21:50,097 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-10 02:21:50,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:21:50,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 40 conjunts are in the unsatisfiable core [2022-02-10 02:21:50,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:21:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:21:51,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:21:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:21:54,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864061705] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:21:54,164 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:21:54,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24, 22] total 51 [2022-02-10 02:21:54,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999823180] [2022-02-10 02:21:54,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:21:54,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-10 02:21:54,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:21:54,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-10 02:21:54,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=442, Invalid=2108, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 02:21:54,166 INFO L87 Difference]: Start difference. First operand 402 states and 609 transitions. Second operand has 51 states, 51 states have (on average 3.3333333333333335) internal successors, (170), 51 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:22:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:22:48,585 INFO L93 Difference]: Finished difference Result 1096 states and 1456 transitions. [2022-02-10 02:22:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-10 02:22:48,585 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.3333333333333335) internal successors, (170), 51 states have internal predecessors, (170), 0 states have call successors, (0), 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 75 [2022-02-10 02:22:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:22:48,588 INFO L225 Difference]: With dead ends: 1096 [2022-02-10 02:22:48,588 INFO L226 Difference]: Without dead ends: 932 [2022-02-10 02:22:48,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 113 SyntacticMatches, 5 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24866 ImplicationChecksByTransitivity, 49.8s TimeCoverageRelationStatistics Valid=7976, Invalid=52294, Unknown=0, NotChecked=0, Total=60270 [2022-02-10 02:22:48,593 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 1734 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 2709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-10 02:22:48,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1734 Valid, 1683 Invalid, 2709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-02-10 02:22:48,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-02-10 02:22:48,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 450. [2022-02-10 02:22:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.5434298440979954) internal successors, (693), 449 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:22:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 693 transitions. [2022-02-10 02:22:48,601 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 693 transitions. Word has length 75 [2022-02-10 02:22:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:22:48,602 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 693 transitions. [2022-02-10 02:22:48,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.3333333333333335) internal successors, (170), 51 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:22:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 693 transitions. [2022-02-10 02:22:48,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-10 02:22:48,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:22:48,603 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:22:48,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 02:22:48,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-10 02:22:48,813 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:22:48,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:22:48,813 INFO L85 PathProgramCache]: Analyzing trace with hash 90810814, now seen corresponding path program 4 times [2022-02-10 02:22:48,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:22:48,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780193950] [2022-02-10 02:22:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:22:48,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:22:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:22:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 02:22:49,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:22:49,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780193950] [2022-02-10 02:22:49,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780193950] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:22:49,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750363132] [2022-02-10 02:22:49,207 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 02:22:49,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:22:49,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:22:49,208 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:22:49,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 02:22:49,331 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 02:22:49,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:22:49,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-10 02:22:49,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:22:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:22:50,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:22:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:22:51,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750363132] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:22:51,565 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:22:51,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21, 19] total 46 [2022-02-10 02:22:51,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087826333] [2022-02-10 02:22:51,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:22:51,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-10 02:22:51,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:22:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-10 02:22:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=1680, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 02:22:51,566 INFO L87 Difference]: Start difference. First operand 450 states and 693 transitions. Second operand has 46 states, 46 states have (on average 4.0) internal successors, (184), 46 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:23:06,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:23:06,319 INFO L93 Difference]: Finished difference Result 821 states and 1174 transitions. [2022-02-10 02:23:06,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-10 02:23:06,320 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.0) internal successors, (184), 46 states have internal predecessors, (184), 0 states have call successors, (0), 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 76 [2022-02-10 02:23:06,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:23:06,323 INFO L225 Difference]: With dead ends: 821 [2022-02-10 02:23:06,323 INFO L226 Difference]: Without dead ends: 745 [2022-02-10 02:23:06,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4760 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=2528, Invalid=11751, Unknown=1, NotChecked=0, Total=14280 [2022-02-10 02:23:06,327 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 896 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 2395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-10 02:23:06,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 1802 Invalid, 2395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 2144 Invalid, 0 Unknown, 95 Unchecked, 4.2s Time] [2022-02-10 02:23:06,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-02-10 02:23:06,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 478. [2022-02-10 02:23:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 477 states have (on average 1.549266247379455) internal successors, (739), 477 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:23:06,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 739 transitions. [2022-02-10 02:23:06,335 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 739 transitions. Word has length 76 [2022-02-10 02:23:06,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:23:06,336 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 739 transitions. [2022-02-10 02:23:06,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.0) internal successors, (184), 46 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:23:06,336 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 739 transitions. [2022-02-10 02:23:06,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:23:06,336 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:23:06,336 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:23:06,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-10 02:23:06,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:23:06,541 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:23:06,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:23:06,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2025791211, now seen corresponding path program 7 times [2022-02-10 02:23:06,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:23:06,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913535957] [2022-02-10 02:23:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:23:06,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:23:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:23:07,439 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:23:07,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:23:07,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913535957] [2022-02-10 02:23:07,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913535957] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:23:07,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419812060] [2022-02-10 02:23:07,440 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 02:23:07,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:23:07,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:23:07,441 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:23:07,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 02:23:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:23:07,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-10 02:23:07,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:23:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:23:09,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:23:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:23:13,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419812060] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:23:13,274 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:23:13,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 18] total 38 [2022-02-10 02:23:13,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791534482] [2022-02-10 02:23:13,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:23:13,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-10 02:23:13,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:23:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-10 02:23:13,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1168, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 02:23:13,275 INFO L87 Difference]: Start difference. First operand 478 states and 739 transitions. Second operand has 38 states, 38 states have (on average 4.552631578947368) internal successors, (173), 38 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:23:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:23:44,296 INFO L93 Difference]: Finished difference Result 891 states and 1276 transitions. [2022-02-10 02:23:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-02-10 02:23:44,296 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 4.552631578947368) internal successors, (173), 38 states have internal predecessors, (173), 0 states have call successors, (0), 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 77 [2022-02-10 02:23:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:23:44,299 INFO L225 Difference]: With dead ends: 891 [2022-02-10 02:23:44,299 INFO L226 Difference]: Without dead ends: 792 [2022-02-10 02:23:44,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 128 SyntacticMatches, 6 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2843 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=1461, Invalid=8045, Unknown=0, NotChecked=0, Total=9506 [2022-02-10 02:23:44,300 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 922 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-10 02:23:44,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 1482 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-02-10 02:23:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2022-02-10 02:23:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 553. [2022-02-10 02:23:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.5579710144927537) internal successors, (860), 552 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:23:44,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 860 transitions. [2022-02-10 02:23:44,309 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 860 transitions. Word has length 77 [2022-02-10 02:23:44,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:23:44,309 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 860 transitions. [2022-02-10 02:23:44,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 4.552631578947368) internal successors, (173), 38 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:23:44,310 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 860 transitions. [2022-02-10 02:23:44,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:23:44,312 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:23:44,312 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:23:44,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 02:23:44,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-10 02:23:44,527 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:23:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:23:44,528 INFO L85 PathProgramCache]: Analyzing trace with hash -286369181, now seen corresponding path program 8 times [2022-02-10 02:23:44,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:23:44,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908504174] [2022-02-10 02:23:44,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:23:44,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:23:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:23:45,656 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:23:45,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:23:45,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908504174] [2022-02-10 02:23:45,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908504174] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:23:45,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070170841] [2022-02-10 02:23:45,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 02:23:45,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:23:45,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:23:45,658 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:23:45,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 02:23:45,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 02:23:45,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:23:45,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-10 02:23:45,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:23:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:23:47,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:23:54,147 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:23:54,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070170841] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:23:54,147 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:23:54,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 18] total 39 [2022-02-10 02:23:54,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984501565] [2022-02-10 02:23:54,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:23:54,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-10 02:23:54,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:23:54,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-10 02:23:54,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1251, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 02:23:54,149 INFO L87 Difference]: Start difference. First operand 553 states and 860 transitions. Second operand has 39 states, 39 states have (on average 4.743589743589744) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:24:06,746 WARN L228 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 170 DAG size of output: 163 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 02:24:14,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:24:16,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:24:59,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:24:59,114 INFO L93 Difference]: Finished difference Result 905 states and 1307 transitions. [2022-02-10 02:24:59,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 02:24:59,115 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.743589743589744) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 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 77 [2022-02-10 02:24:59,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:24:59,117 INFO L225 Difference]: With dead ends: 905 [2022-02-10 02:24:59,118 INFO L226 Difference]: Without dead ends: 785 [2022-02-10 02:24:59,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 128 SyntacticMatches, 4 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2715 ImplicationChecksByTransitivity, 55.0s TimeCoverageRelationStatistics Valid=1297, Invalid=7822, Unknown=1, NotChecked=0, Total=9120 [2022-02-10 02:24:59,119 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 889 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:24:59,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [889 Valid, 1155 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2022-02-10 02:24:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-02-10 02:24:59,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 602. [2022-02-10 02:24:59,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 601 states have (on average 1.5607321131447587) internal successors, (938), 601 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:24:59,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 938 transitions. [2022-02-10 02:24:59,128 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 938 transitions. Word has length 77 [2022-02-10 02:24:59,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:24:59,128 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 938 transitions. [2022-02-10 02:24:59,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.743589743589744) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:24:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 938 transitions. [2022-02-10 02:24:59,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:24:59,129 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:24:59,130 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:24:59,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-10 02:24:59,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-10 02:24:59,334 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:24:59,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:24:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash 700625591, now seen corresponding path program 9 times [2022-02-10 02:24:59,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:24:59,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589887850] [2022-02-10 02:24:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:24:59,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:24:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:24:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:24:59,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:24:59,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589887850] [2022-02-10 02:24:59,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589887850] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:24:59,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131308200] [2022-02-10 02:24:59,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 02:24:59,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:24:59,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:24:59,818 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:24:59,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 02:24:59,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-10 02:24:59,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:24:59,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 35 conjunts are in the unsatisfiable core [2022-02-10 02:24:59,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:25:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:25:02,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:25:06,100 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:25:06,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131308200] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:25:06,100 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:25:06,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22, 21] total 48 [2022-02-10 02:25:06,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457729911] [2022-02-10 02:25:06,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:25:06,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-10 02:25:06,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:25:06,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-10 02:25:06,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=1912, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 02:25:06,102 INFO L87 Difference]: Start difference. First operand 602 states and 938 transitions. Second operand has 48 states, 48 states have (on average 3.6666666666666665) internal successors, (176), 48 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:25:50,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:25:50,036 INFO L93 Difference]: Finished difference Result 954 states and 1407 transitions. [2022-02-10 02:25:50,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-10 02:25:50,036 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.6666666666666665) internal successors, (176), 48 states have internal predecessors, (176), 0 states have call successors, (0), 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 77 [2022-02-10 02:25:50,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:25:50,039 INFO L225 Difference]: With dead ends: 954 [2022-02-10 02:25:50,039 INFO L226 Difference]: Without dead ends: 880 [2022-02-10 02:25:50,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 120 SyntacticMatches, 5 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7669 ImplicationChecksByTransitivity, 37.8s TimeCoverageRelationStatistics Valid=3120, Invalid=19230, Unknown=0, NotChecked=0, Total=22350 [2022-02-10 02:25:50,042 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 981 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-02-10 02:25:50,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 1143 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-02-10 02:25:50,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-02-10 02:25:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 677. [2022-02-10 02:25:50,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 676 states have (on average 1.5710059171597632) internal successors, (1062), 676 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:25:50,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1062 transitions. [2022-02-10 02:25:50,053 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1062 transitions. Word has length 77 [2022-02-10 02:25:50,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:25:50,053 INFO L470 AbstractCegarLoop]: Abstraction has 677 states and 1062 transitions. [2022-02-10 02:25:50,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.6666666666666665) internal successors, (176), 48 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:25:50,053 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1062 transitions. [2022-02-10 02:25:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-10 02:25:50,054 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:25:50,054 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:25:50,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-10 02:25:50,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-10 02:25:50,267 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:25:50,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:25:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1412446369, now seen corresponding path program 10 times [2022-02-10 02:25:50,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:25:50,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846864814] [2022-02-10 02:25:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:25:50,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:25:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:25:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:25:51,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:25:51,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846864814] [2022-02-10 02:25:51,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846864814] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:25:51,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587568956] [2022-02-10 02:25:51,292 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 02:25:51,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:25:51,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:25:51,293 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:25:51,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-10 02:25:51,443 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 02:25:51,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:25:51,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 02:25:51,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:25:53,516 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:25:53,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:26:01,501 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:26:01,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587568956] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:26:01,501 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:26:01,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 20] total 45 [2022-02-10 02:26:01,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604127948] [2022-02-10 02:26:01,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:26:01,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-02-10 02:26:01,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:26:01,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-02-10 02:26:01,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1673, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 02:26:01,503 INFO L87 Difference]: Start difference. First operand 677 states and 1062 transitions. Second operand has 45 states, 45 states have (on average 3.533333333333333) internal successors, (159), 45 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:26:22,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:26:31,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:26:32,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:26:39,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:26:40,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:26:48,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:27:04,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:27:07,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:27:09,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:27:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:27:48,226 INFO L93 Difference]: Finished difference Result 1279 states and 1840 transitions. [2022-02-10 02:27:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-10 02:27:48,226 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.533333333333333) internal successors, (159), 45 states have internal predecessors, (159), 0 states have call successors, (0), 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 78 [2022-02-10 02:27:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:27:48,229 INFO L225 Difference]: With dead ends: 1279 [2022-02-10 02:27:48,229 INFO L226 Difference]: Without dead ends: 1132 [2022-02-10 02:27:48,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 132 SyntacticMatches, 6 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7003 ImplicationChecksByTransitivity, 78.5s TimeCoverageRelationStatistics Valid=2648, Invalid=17374, Unknown=0, NotChecked=0, Total=20022 [2022-02-10 02:27:48,234 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 909 mSDsluCounter, 1877 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 193 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 120 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2022-02-10 02:27:48,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 1784 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1778 Invalid, 3 Unknown, 120 Unchecked, 34.5s Time] [2022-02-10 02:27:48,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-02-10 02:27:48,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 750. [2022-02-10 02:27:48,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 749 states have (on average 1.5740987983978638) internal successors, (1179), 749 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:27:48,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1179 transitions. [2022-02-10 02:27:48,246 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1179 transitions. Word has length 78 [2022-02-10 02:27:48,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:27:48,246 INFO L470 AbstractCegarLoop]: Abstraction has 750 states and 1179 transitions. [2022-02-10 02:27:48,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.533333333333333) internal successors, (159), 45 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:27:48,246 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1179 transitions. [2022-02-10 02:27:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-02-10 02:27:48,247 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:27:48,247 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 02:27:48,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-10 02:27:48,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-10 02:27:48,464 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:27:48,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:27:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1300979862, now seen corresponding path program 11 times [2022-02-10 02:27:48,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:27:48,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041945460] [2022-02-10 02:27:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:27:48,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:27:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:27:51,667 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:27:51,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:27:51,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041945460] [2022-02-10 02:27:51,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041945460] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:27:51,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403185613] [2022-02-10 02:27:51,668 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 02:27:51,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:27:51,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:27:51,669 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:27:51,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-10 02:27:51,824 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-02-10 02:27:51,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:27:51,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 39 conjunts are in the unsatisfiable core [2022-02-10 02:27:51,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:27:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:27:55,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:28:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:28:02,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403185613] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:28:02,864 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:28:02,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 24, 23] total 55 [2022-02-10 02:28:02,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027736820] [2022-02-10 02:28:02,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:28:02,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-02-10 02:28:02,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:28:02,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-02-10 02:28:02,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=2455, Unknown=1, NotChecked=0, Total=2970 [2022-02-10 02:28:02,866 INFO L87 Difference]: Start difference. First operand 750 states and 1179 transitions. Second operand has 55 states, 55 states have (on average 3.3636363636363638) internal successors, (185), 55 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:28:17,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:28:41,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:28:43,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:28:45,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:28:51,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:29:06,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:29:08,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:29:10,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:30:09,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:30:14,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:31:09,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:31:11,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:32:04,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-10 02:32:10,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2022-02-10 02:32:59,629 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-10 02:32:59,629 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-10 02:33:00,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-10 02:33:00,835 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-02-10 02:33:00,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-02-10 02:33:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-10 02:33:00,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 123 SyntacticMatches, 5 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8238 ImplicationChecksByTransitivity, 256.4s TimeCoverageRelationStatistics Valid=3466, Invalid=20351, Unknown=53, NotChecked=0, Total=23870 [2022-02-10 02:33:00,853 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 701 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 351 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.4s IncrementalHoareTripleChecker+Time [2022-02-10 02:33:00,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 548 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1529 Invalid, 8 Unknown, 0 Unchecked, 47.4s Time] [2022-02-10 02:33:00,854 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 02:33:00,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 02:33:00,855 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (750states) and FLOYD_HOARE automaton (currently 118 states, 55 states before enhancement),while executing Executor. [2022-02-10 02:33:00,856 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 02:33:00,856 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 02:33:00,857 INFO L732 BasicCegarLoop]: Path program histogram: [11, 4, 1, 1] [2022-02-10 02:33:00,859 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 02:33:00,859 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 02:33:00,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 02:33:00 BasicIcfg [2022-02-10 02:33:00,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 02:33:00,861 INFO L158 Benchmark]: Toolchain (without parser) took 837079.79ms. Allocated memory was 202.4MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 148.4MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. [2022-02-10 02:33:00,861 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 02:33:00,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.59ms. Allocated memory was 202.4MB in the beginning and 247.5MB in the end (delta: 45.1MB). Free memory was 148.2MB in the beginning and 219.5MB in the end (delta: -71.3MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. [2022-02-10 02:33:00,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.01ms. Allocated memory is still 247.5MB. Free memory was 219.5MB in the beginning and 217.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 02:33:00,861 INFO L158 Benchmark]: Boogie Preprocessor took 31.35ms. Allocated memory is still 247.5MB. Free memory was 217.9MB in the beginning and 216.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 02:33:00,861 INFO L158 Benchmark]: RCFGBuilder took 407.64ms. Allocated memory is still 247.5MB. Free memory was 216.9MB in the beginning and 202.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-10 02:33:00,862 INFO L158 Benchmark]: TraceAbstraction took 836350.14ms. Allocated memory was 247.5MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 201.7MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. [2022-02-10 02:33:00,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 246.59ms. Allocated memory was 202.4MB in the beginning and 247.5MB in the end (delta: 45.1MB). Free memory was 148.2MB in the beginning and 219.5MB in the end (delta: -71.3MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.01ms. Allocated memory is still 247.5MB. Free memory was 219.5MB in the beginning and 217.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.35ms. Allocated memory is still 247.5MB. Free memory was 217.9MB in the beginning and 216.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 407.64ms. Allocated memory is still 247.5MB. Free memory was 216.9MB in the beginning and 202.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 836350.14ms. Allocated memory was 247.5MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 201.7MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - 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 - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (750states) and FLOYD_HOARE automaton (currently 118 states, 55 states before enhancement),while executing Executor. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (750states) and FLOYD_HOARE automaton (currently 118 states, 55 states before enhancement),while executing Executor. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (750states) and FLOYD_HOARE automaton (currently 118 states, 55 states before enhancement),while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 100 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 836.2s, OverallIterations: 17, TraceHistogramMax: 4, PathProgramHistogramMax: 11, EmptinessCheckTime: 11.3s, AutomataDifference: 713.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 26.2s, PartialOrderReductionTime: 26.1s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 12576 SdHoareTripleChecker+Valid, 143.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12576 mSDsluCounter, 18362 SdHoareTripleChecker+Invalid, 139.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 391 IncrementalHoareTripleChecker+Unchecked, 18933 mSDsCounter, 2866 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20078 IncrementalHoareTripleChecker+Invalid, 23346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2866 mSolverCounterUnsat, 1204 mSDtfsCounter, 20078 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3356 GetRequests, 1664 SyntacticMatches, 55 SemanticMatches, 1636 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 83865 ImplicationChecksByTransitivity, 598.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=567157occurred in iteration=0, InterpolantAutomatonStates: 1229, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 20658 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 79.5s InterpolantComputationTime, 2278 NumberOfCodeBlocks, 2278 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 3207 ConstructedInterpolants, 28 QuantifiedInterpolants, 83643 SizeOfPredicates, 208 NumberOfNonLiveVariables, 2339 ConjunctsInSsa, 421 ConjunctsInUnsatCore, 44 InterpolantComputations, 5 PerfectInterpolantSequences, 17/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown