/usr/bin/java -Xmx16000000000 -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-POR-DelaySleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-02 05:21:00,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-02 05:21:00,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-02 05:21:00,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-02 05:21:00,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-02 05:21:00,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-02 05:21:00,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-02 05:21:00,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-02 05:21:00,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-02 05:21:00,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-02 05:21:00,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-02 05:21:00,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-02 05:21:00,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-02 05:21:00,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-02 05:21:00,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-02 05:21:00,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-02 05:21:00,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-02 05:21:00,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-02 05:21:00,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-02 05:21:00,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-02 05:21:00,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-02 05:21:00,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-02 05:21:00,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-02 05:21:00,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-02 05:21:00,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-02 05:21:00,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-02 05:21:00,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-02 05:21:00,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-02 05:21:00,914 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-POR-DelaySleepPersistent-NoLbe.epf [2021-06-02 05:21:00,948 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-02 05:21:00,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-02 05:21:00,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-02 05:21:00,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-02 05:21:00,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-02 05:21:00,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-02 05:21:00,952 INFO L138 SettingsManager]: * Use SBE=true [2021-06-02 05:21:00,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-02 05:21:00,952 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-02 05:21:00,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-02 05:21:00,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-02 05:21:00,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-02 05:21:00,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-02 05:21:00,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-02 05:21:00,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-02 05:21:00,954 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-02 05:21:00,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-02 05:21:00,954 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-02 05:21:00,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-02 05:21:00,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-02 05:21:00,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-02 05:21:00,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-02 05:21:00,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-02 05:21:00,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-02 05:21:00,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-02 05:21:00,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-02 05:21:00,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-02 05:21:00,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-02 05:21:00,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-02 05:21:00,956 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-02 05:21:00,956 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-02 05:21:00,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-02 05:21:00,957 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET [2021-06-02 05:21:00,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-02 05:21:01,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-02 05:21:01,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-02 05:21:01,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-02 05:21:01,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-02 05:21:01,308 INFO L275 PluginConnector]: CDTParser initialized [2021-06-02 05:21:01,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longer-1.i [2021-06-02 05:21:01,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d51238e8/b35ad0a35c214f1996d9c971df103e77/FLAG9de9dee22 [2021-06-02 05:21:01,824 INFO L306 CDTParser]: Found 1 translation units. [2021-06-02 05:21:01,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-1.i [2021-06-02 05:21:01,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d51238e8/b35ad0a35c214f1996d9c971df103e77/FLAG9de9dee22 [2021-06-02 05:21:02,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d51238e8/b35ad0a35c214f1996d9c971df103e77 [2021-06-02 05:21:02,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-02 05:21:02,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-02 05:21:02,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-02 05:21:02,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-02 05:21:02,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-02 05:21:02,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247178a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02, skipping insertion in model container [2021-06-02 05:21:02,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-02 05:21:02,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-02 05:21:02,603 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-1.i[30927,30940] [2021-06-02 05:21:02,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-02 05:21:02,613 INFO L203 MainTranslator]: Completed pre-run [2021-06-02 05:21:02,652 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-1.i[30927,30940] [2021-06-02 05:21:02,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-02 05:21:02,715 INFO L208 MainTranslator]: Completed translation [2021-06-02 05:21:02,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02 WrapperNode [2021-06-02 05:21:02,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-02 05:21:02,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-02 05:21:02,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-02 05:21:02,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-02 05:21:02,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-02 05:21:02,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-02 05:21:02,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-02 05:21:02,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-02 05:21:02,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... [2021-06-02 05:21:02,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-02 05:21:02,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-02 05:21:02,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-02 05:21:02,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-02 05:21:02,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-02 05:21:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-06-02 05:21:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-06-02 05:21:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-06-02 05:21:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-06-02 05:21:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-02 05:21:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-02 05:21:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-02 05:21:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-02 05:21:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-02 05:21:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-02 05:21:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-02 05:21:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-02 05:21:02,891 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-02 05:21:03,159 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-02 05:21:03,160 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-02 05:21:03,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 05:21:03 BoogieIcfgContainer [2021-06-02 05:21:03,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-02 05:21:03,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-02 05:21:03,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-02 05:21:03,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-02 05:21:03,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.06 05:21:02" (1/3) ... [2021-06-02 05:21:03,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a0510a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 05:21:03, skipping insertion in model container [2021-06-02 05:21:03,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 05:21:02" (2/3) ... [2021-06-02 05:21:03,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a0510a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 05:21:03, skipping insertion in model container [2021-06-02 05:21:03,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 05:21:03" (3/3) ... [2021-06-02 05:21:03,168 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench_longer-1.i [2021-06-02 05:21:03,172 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-02 05:21:03,172 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-02 05:21:03,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-02 05:21:03,173 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-02 05:21:03,199 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,199 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,199 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,199 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,200 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,200 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,200 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,200 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,201 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,201 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,201 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,201 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,202 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,202 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,202 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,202 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,203 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,203 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,203 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,203 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,204 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,204 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,204 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,204 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,204 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,204 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,205 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,205 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,205 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,205 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,206 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,206 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,206 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,206 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,206 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,207 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,207 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,207 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,207 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,207 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,208 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,208 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,208 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,208 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,208 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,209 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,209 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,209 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,209 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,210 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,210 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,210 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,210 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,211 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,211 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,211 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,211 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,211 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,212 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,212 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,214 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,214 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,214 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,214 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,214 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,215 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,219 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,219 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,220 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:21:03,222 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-02 05:21:03,256 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-02 05:21:03,308 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 05:21:03,308 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 05:21:03,309 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 05:21:03,309 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 05:21:03,309 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 05:21:03,309 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 05:21:03,309 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 05:21:03,310 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-02 05:21:03,495 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:03,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:03,501 INFO L82 PathProgramCache]: Analyzing trace with hash -2133486681, now seen corresponding path program 1 times [2021-06-02 05:21:03,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:03,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052035113] [2021-06-02 05:21:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:03,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:03,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052035113] [2021-06-02 05:21:03,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052035113] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 05:21:03,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 05:21:03,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-02 05:21:03,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687568660] [2021-06-02 05:21:03,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-02 05:21:03,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:03,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-02 05:21:03,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-02 05:21:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:03,960 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:03,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:04,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-02 05:21:04,225 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:04,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:04,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1329421710, now seen corresponding path program 1 times [2021-06-02 05:21:04,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:04,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611367385] [2021-06-02 05:21:04,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:04,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:04,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611367385] [2021-06-02 05:21:04,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611367385] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 05:21:04,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 05:21:04,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-02 05:21:04,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396511972] [2021-06-02 05:21:04,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 05:21:04,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:04,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 05:21:04,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 05:21:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:04,282 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:04,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:04,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:04,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:04,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-02 05:21:04,336 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:04,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:04,336 INFO L82 PathProgramCache]: Analyzing trace with hash 499413389, now seen corresponding path program 1 times [2021-06-02 05:21:04,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:04,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332205661] [2021-06-02 05:21:04,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:04,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:04,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332205661] [2021-06-02 05:21:04,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332205661] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:04,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829292250] [2021-06-02 05:21:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:04,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-02 05:21:04,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:04,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:04,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829292250] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:04,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:04,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-02 05:21:04,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162957149] [2021-06-02 05:21:04,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-02 05:21:04,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:04,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-02 05:21:04,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-02 05:21:04,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:04,701 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:04,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:04,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:04,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:04,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:04,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:05,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:05,043 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:05,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:05,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1792345326, now seen corresponding path program 2 times [2021-06-02 05:21:05,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:05,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102225054] [2021-06-02 05:21:05,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:05,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:05,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102225054] [2021-06-02 05:21:05,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102225054] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:05,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413545140] [2021-06-02 05:21:05,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:05,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 05:21:05,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:05,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-02 05:21:05,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:05,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413545140] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:05,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:05,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-02 05:21:05,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704313312] [2021-06-02 05:21:05,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-02 05:21:05,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:05,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-02 05:21:05,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-02 05:21:05,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:05,312 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:05,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:05,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:05,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:05,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:05,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:05,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:05,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:05,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:05,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:05,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:05,621 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:05,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:05,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1169057325, now seen corresponding path program 3 times [2021-06-02 05:21:05,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:05,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801528125] [2021-06-02 05:21:05,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:05,692 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:05,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:05,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801528125] [2021-06-02 05:21:05,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801528125] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:05,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659541992] [2021-06-02 05:21:05,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:05,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-02 05:21:05,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:05,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-02 05:21:05,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:05,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659541992] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:05,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:05,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-06-02 05:21:05,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795608039] [2021-06-02 05:21:05,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-02 05:21:05,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:05,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-02 05:21:05,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-06-02 05:21:05,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:05,923 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:05,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:05,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:05,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:05,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:05,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:05,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:06,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:06,276 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:06,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:06,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1007350862, now seen corresponding path program 4 times [2021-06-02 05:21:06,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:06,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207969754] [2021-06-02 05:21:06,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:06,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:06,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207969754] [2021-06-02 05:21:06,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207969754] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:06,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622972473] [2021-06-02 05:21:06,384 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:06,457 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-02 05:21:06,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:06,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-02 05:21:06,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:06,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622972473] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:06,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:06,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-02 05:21:06,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464980991] [2021-06-02 05:21:06,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-02 05:21:06,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:06,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-02 05:21:06,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-02 05:21:06,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:06,631 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:06,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:06,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:06,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:06,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:06,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:06,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:06,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:06,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:07,049 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-02 05:21:07,050 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:07,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:07,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1739002573, now seen corresponding path program 5 times [2021-06-02 05:21:07,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:07,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329264352] [2021-06-02 05:21:07,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:07,184 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:07,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:07,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329264352] [2021-06-02 05:21:07,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329264352] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:07,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147088196] [2021-06-02 05:21:07,185 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:07,257 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-02 05:21:07,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:07,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-02 05:21:07,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:07,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147088196] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:07,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:07,427 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2021-06-02 05:21:07,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600616040] [2021-06-02 05:21:07,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-02 05:21:07,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:07,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-02 05:21:07,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-06-02 05:21:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:07,428 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:07,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:07,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:07,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:07,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:07,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:07,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:07,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:07,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:07,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:07,843 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:07,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:07,843 INFO L82 PathProgramCache]: Analyzing trace with hash 665136046, now seen corresponding path program 6 times [2021-06-02 05:21:07,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:07,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761543278] [2021-06-02 05:21:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:08,017 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:08,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:08,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761543278] [2021-06-02 05:21:08,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761543278] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:08,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108632472] [2021-06-02 05:21:08,018 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:08,110 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-02 05:21:08,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:08,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-02 05:21:08,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:08,481 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:08,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108632472] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:08,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:08,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2021-06-02 05:21:08,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961268003] [2021-06-02 05:21:08,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-02 05:21:08,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:08,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-02 05:21:08,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2021-06-02 05:21:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:08,483 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:08,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 6.0) internal successors, (132), 22 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:08,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:08,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:08,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:08,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:08,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:08,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:08,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:08,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:08,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:09,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:09,049 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:09,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1742834469, now seen corresponding path program 1 times [2021-06-02 05:21:09,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:09,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855165837] [2021-06-02 05:21:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:09,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:09,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855165837] [2021-06-02 05:21:09,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855165837] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:09,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233623315] [2021-06-02 05:21:09,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:09,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-02 05:21:09,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:09,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233623315] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:09,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:09,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-06-02 05:21:09,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502614034] [2021-06-02 05:21:09,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-02 05:21:09,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:09,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-02 05:21:09,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2021-06-02 05:21:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:09,807 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:09,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 5.72) internal successors, (143), 25 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:09,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:10,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-06-02 05:21:10,788 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:10,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:10,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1775558606, now seen corresponding path program 2 times [2021-06-02 05:21:10,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:10,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133055203] [2021-06-02 05:21:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:11,029 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:11,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:11,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133055203] [2021-06-02 05:21:11,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133055203] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:11,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119455067] [2021-06-02 05:21:11,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:11,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 05:21:11,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:11,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-02 05:21:11,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:11,478 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:11,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119455067] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:11,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:11,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2021-06-02 05:21:11,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214442015] [2021-06-02 05:21:11,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-02 05:21:11,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:11,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-02 05:21:11,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-06-02 05:21:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:11,480 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:11,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 5.846153846153846) internal successors, (152), 26 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:11,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:12,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-02 05:21:12,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:12,676 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:12,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:12,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1170582341, now seen corresponding path program 3 times [2021-06-02 05:21:12,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:12,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849438191] [2021-06-02 05:21:12,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:12,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:12,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849438191] [2021-06-02 05:21:12,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849438191] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:12,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634247499] [2021-06-02 05:21:12,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:12,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-02 05:21:12,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:12,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-02 05:21:12,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:13,405 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:13,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634247499] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:13,405 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:13,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 28 [2021-06-02 05:21:13,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693917204] [2021-06-02 05:21:13,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-02 05:21:13,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:13,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-02 05:21:13,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2021-06-02 05:21:13,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:13,407 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:13,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 5.785714285714286) internal successors, (162), 28 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:13,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-02 05:21:13,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:14,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:14,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-02 05:21:14,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-02 05:21:14,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:14,831 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:14,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:14,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1737092078, now seen corresponding path program 4 times [2021-06-02 05:21:14,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:14,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893380618] [2021-06-02 05:21:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:15,076 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:15,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:15,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893380618] [2021-06-02 05:21:15,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893380618] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:15,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227192692] [2021-06-02 05:21:15,077 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:15,155 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-02 05:21:15,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:15,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-02 05:21:15,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:15,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227192692] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:15,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:15,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-06-02 05:21:15,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350695682] [2021-06-02 05:21:15,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-02 05:21:15,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:15,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-02 05:21:15,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2021-06-02 05:21:15,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:15,704 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:15,705 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 5.580645161290323) internal successors, (173), 31 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) [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-02 05:21:15,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:17,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-02 05:21:17,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-02 05:21:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-02 05:21:17,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-02 05:21:17,477 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:17,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:17,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1234707301, now seen corresponding path program 5 times [2021-06-02 05:21:17,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:17,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324056089] [2021-06-02 05:21:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:17,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:17,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324056089] [2021-06-02 05:21:17,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324056089] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:17,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398578185] [2021-06-02 05:21:17,711 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:17,792 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-06-02 05:21:17,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:17,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-02 05:21:17,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:18,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398578185] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:18,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 05:21:18,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2021-06-02 05:21:18,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571379314] [2021-06-02 05:21:18,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-02 05:21:18,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:18,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-02 05:21:18,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2021-06-02 05:21:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:18,333 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:18,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 5.545454545454546) internal successors, (183), 33 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:18,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-06-02 05:21:18,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-02 05:21:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-02 05:21:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-02 05:21:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-06-02 05:21:20,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-02 05:21:20,318 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:20,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:20,319 INFO L82 PathProgramCache]: Analyzing trace with hash -604614642, now seen corresponding path program 6 times [2021-06-02 05:21:20,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:20,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857179490] [2021-06-02 05:21:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 66 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-06-02 05:21:20,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:20,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857179490] [2021-06-02 05:21:20,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857179490] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:20,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344503834] [2021-06-02 05:21:20,437 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:20,524 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-06-02 05:21:20,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:20,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-02 05:21:20,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:20,683 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-06-02 05:21:20,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344503834] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 05:21:20,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-02 05:21:20,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 17 [2021-06-02 05:21:20,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102688912] [2021-06-02 05:21:20,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-02 05:21:20,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:20,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-02 05:21:20,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2021-06-02 05:21:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:20,685 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:20,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:20,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:20,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:20,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:20,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:20,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:20,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:20,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:20,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:20,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-02 05:21:20,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-02 05:21:20,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-02 05:21:20,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-06-02 05:21:20,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-06-02 05:21:20,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-02 05:21:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-02 05:21:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-02 05:21:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-02 05:21:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-02 05:21:21,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-02 05:21:21,855 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:21,855 INFO L82 PathProgramCache]: Analyzing trace with hash 423884220, now seen corresponding path program 7 times [2021-06-02 05:21:21,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:21,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876354442] [2021-06-02 05:21:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 96 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-06-02 05:21:21,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:21,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876354442] [2021-06-02 05:21:21,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876354442] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:21,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903187629] [2021-06-02 05:21:21,980 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:22,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-02 05:21:22,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 05:21:22,211 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-06-02 05:21:22,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903187629] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 05:21:22,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-02 05:21:22,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 17 [2021-06-02 05:21:22,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088224679] [2021-06-02 05:21:22,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-02 05:21:22,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:21:22,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-02 05:21:22,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2021-06-02 05:21:22,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:22,215 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:21:22,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 05:21:22,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:22,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:22,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:22,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:22,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:22,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:22,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:22,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:22,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-02 05:21:22,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-02 05:21:22,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-02 05:21:22,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-06-02 05:21:22,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-06-02 05:21:22,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-02 05:21:22,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:21:22,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-02 05:21:22,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:21:22,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-02 05:21:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-02 05:21:22,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:22,956 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 05:21:22,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:21:22,956 INFO L82 PathProgramCache]: Analyzing trace with hash -410781631, now seen corresponding path program 8 times [2021-06-02 05:21:22,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:21:22,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209080160] [2021-06-02 05:21:22,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:21:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:21:23,159 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:21:23,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:21:23,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209080160] [2021-06-02 05:21:23,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209080160] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 05:21:23,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626248034] [2021-06-02 05:21:23,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 05:21:23,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 05:21:23,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 05:21:23,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-02 05:21:23,238 INFO L286 TraceCheckSpWp]: Computing forward predicates...