/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 14:53:54,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 14:53:54,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 14:53:54,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 14:53:54,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 14:53:54,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 14:53:54,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 14:53:54,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-01 14:53:54,952 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 14:53:54,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 14:53:54,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 14:53:54,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 14:53:54,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 14:53:54,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 14:53:54,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 14:53:54,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 14:53:54,954 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 14:53:54,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 14:53:54,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 14:53:54,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 14:53:54,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 14:53:54,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 14:53:54,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 14:53:54,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 14:53:54,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 14:53:54,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 14:53:54,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 14:53:54,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 14:53:54,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 14:53:54,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 14:53:54,956 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 14:53:54,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 14:53:54,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 14:53:55,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 14:53:55,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 14:53:55,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 14:53:55,173 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 14:53:55,174 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 14:53:55,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-01 14:53:55,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74a62189e/7dc1d64725e649e18271bc925476db9e/FLAG26023526e [2022-03-01 14:53:55,684 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 14:53:55,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-01 14:53:55,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74a62189e/7dc1d64725e649e18271bc925476db9e/FLAG26023526e [2022-03-01 14:53:56,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74a62189e/7dc1d64725e649e18271bc925476db9e [2022-03-01 14:53:56,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 14:53:56,044 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 14:53:56,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 14:53:56,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 14:53:56,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 14:53:56,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77065b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56, skipping insertion in model container [2022-03-01 14:53:56,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 14:53:56,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 14:53:56,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-03-01 14:53:56,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 14:53:56,525 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 14:53:56,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-03-01 14:53:56,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 14:53:56,577 INFO L208 MainTranslator]: Completed translation [2022-03-01 14:53:56,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56 WrapperNode [2022-03-01 14:53:56,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 14:53:56,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 14:53:56,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 14:53:56,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 14:53:56,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,605 INFO L137 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-03-01 14:53:56,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 14:53:56,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 14:53:56,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 14:53:56,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 14:53:56,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 14:53:56,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 14:53:56,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 14:53:56,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 14:53:56,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (1/1) ... [2022-03-01 14:53:56,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 14:53:56,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 14:53:56,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 14:53:56,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 14:53:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 14:53:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 14:53:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 14:53:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 14:53:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 14:53:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-03-01 14:53:56,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-03-01 14:53:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-03-01 14:53:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-03-01 14:53:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-03-01 14:53:56,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-03-01 14:53:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 14:53:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 14:53:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 14:53:56,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 14:53:56,697 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 14:53:56,845 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 14:53:56,846 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 14:53:56,974 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 14:53:56,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 14:53:56,979 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 14:53:56,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 02:53:56 BoogieIcfgContainer [2022-03-01 14:53:56,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 14:53:56,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 14:53:56,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 14:53:56,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 14:53:56,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 02:53:56" (1/3) ... [2022-03-01 14:53:56,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2526de06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 02:53:56, skipping insertion in model container [2022-03-01 14:53:56,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 02:53:56" (2/3) ... [2022-03-01 14:53:56,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2526de06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 02:53:56, skipping insertion in model container [2022-03-01 14:53:56,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 02:53:56" (3/3) ... [2022-03-01 14:53:56,985 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-03-01 14:53:56,994 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 14:53:56,994 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 14:53:56,994 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 14:53:56,994 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 14:53:57,019 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,019 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,020 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,020 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,020 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,020 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,020 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,020 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,021 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,021 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,021 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,021 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,021 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,021 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,021 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,022 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,022 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,022 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,022 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,022 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,022 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,022 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,023 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,023 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,023 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,023 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,023 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,023 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,023 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,024 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,024 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,024 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,024 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,024 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,024 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,024 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,027 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,027 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,027 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,027 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,029 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,029 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,029 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,029 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,030 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,030 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,030 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,031 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 14:53:57,031 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-01 14:53:57,059 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 14:53:57,064 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 14:53:57,064 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-01 14:53:57,071 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow [2022-03-01 14:53:57,304 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:57,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:57,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-01 14:53:57,354 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:53:57,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:53:57,356 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:53:57,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:53:57,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1011825075, now seen corresponding path program 1 times [2022-03-01 14:53:57,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:53:57,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676211041] [2022-03-01 14:53:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:53:57,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:53:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:53:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:53:57,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:53:57,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676211041] [2022-03-01 14:53:57,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676211041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:53:57,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:53:57,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 14:53:57,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414431214] [2022-03-01 14:53:57,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:53:57,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 14:53:57,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:53:57,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 14:53:57,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-01 14:53:57,782 INFO L87 Difference]: Start difference. First operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:58,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:53:58,162 INFO L93 Difference]: Finished difference Result 11185 states and 38058 transitions. [2022-03-01 14:53:58,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 14:53:58,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-03-01 14:53:58,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:53:58,213 INFO L225 Difference]: With dead ends: 11185 [2022-03-01 14:53:58,214 INFO L226 Difference]: Without dead ends: 7557 [2022-03-01 14:53:58,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-01 14:53:58,217 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 206 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 14:53:58,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 578 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 14:53:58,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7557 states. [2022-03-01 14:53:58,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7557 to 6472. [2022-03-01 14:53:58,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6472 states, 6471 states have (on average 3.39823829392675) internal successors, (21990), 6471 states have internal predecessors, (21990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:58,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6472 states to 6472 states and 21990 transitions. [2022-03-01 14:53:58,505 INFO L78 Accepts]: Start accepts. Automaton has 6472 states and 21990 transitions. Word has length 55 [2022-03-01 14:53:58,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:53:58,505 INFO L470 AbstractCegarLoop]: Abstraction has 6472 states and 21990 transitions. [2022-03-01 14:53:58,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:58,506 INFO L276 IsEmpty]: Start isEmpty. Operand 6472 states and 21990 transitions. [2022-03-01 14:53:58,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-01 14:53:58,519 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:53:58,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:53:58,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 14:53:58,520 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:53:58,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:53:58,520 INFO L85 PathProgramCache]: Analyzing trace with hash -197202132, now seen corresponding path program 1 times [2022-03-01 14:53:58,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:53:58,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224505234] [2022-03-01 14:53:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:53:58,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:53:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:53:58,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:53:58,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:53:58,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224505234] [2022-03-01 14:53:58,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224505234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:53:58,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:53:58,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 14:53:58,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782066104] [2022-03-01 14:53:58,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:53:58,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 14:53:58,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:53:58,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 14:53:58,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-01 14:53:58,639 INFO L87 Difference]: Start difference. First operand 6472 states and 21990 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:53:59,014 INFO L93 Difference]: Finished difference Result 8879 states and 29658 transitions. [2022-03-01 14:53:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 14:53:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-03-01 14:53:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:53:59,064 INFO L225 Difference]: With dead ends: 8879 [2022-03-01 14:53:59,065 INFO L226 Difference]: Without dead ends: 7114 [2022-03-01 14:53:59,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-01 14:53:59,066 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 201 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 14:53:59,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 572 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 14:53:59,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2022-03-01 14:53:59,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 5582. [2022-03-01 14:53:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5582 states, 5581 states have (on average 3.3717971689661352) internal successors, (18818), 5581 states have internal predecessors, (18818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5582 states to 5582 states and 18818 transitions. [2022-03-01 14:53:59,311 INFO L78 Accepts]: Start accepts. Automaton has 5582 states and 18818 transitions. Word has length 57 [2022-03-01 14:53:59,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:53:59,312 INFO L470 AbstractCegarLoop]: Abstraction has 5582 states and 18818 transitions. [2022-03-01 14:53:59,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:59,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5582 states and 18818 transitions. [2022-03-01 14:53:59,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-01 14:53:59,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:53:59,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:53:59,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 14:53:59,324 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:53:59,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:53:59,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1126678965, now seen corresponding path program 1 times [2022-03-01 14:53:59,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:53:59,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026446976] [2022-03-01 14:53:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:53:59,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:53:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:53:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:53:59,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:53:59,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026446976] [2022-03-01 14:53:59,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026446976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:53:59,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:53:59,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 14:53:59,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052110374] [2022-03-01 14:53:59,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:53:59,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 14:53:59,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:53:59,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 14:53:59,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-01 14:53:59,418 INFO L87 Difference]: Start difference. First operand 5582 states and 18818 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:53:59,640 INFO L93 Difference]: Finished difference Result 8004 states and 26563 transitions. [2022-03-01 14:53:59,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 14:53:59,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-03-01 14:53:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:53:59,663 INFO L225 Difference]: With dead ends: 8004 [2022-03-01 14:53:59,664 INFO L226 Difference]: Without dead ends: 6729 [2022-03-01 14:53:59,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-01 14:53:59,665 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 150 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 14:53:59,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 704 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 14:53:59,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6729 states. [2022-03-01 14:53:59,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6729 to 4987. [2022-03-01 14:53:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 3.344765342960289) internal successors, (16677), 4986 states have internal predecessors, (16677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 16677 transitions. [2022-03-01 14:53:59,886 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 16677 transitions. Word has length 59 [2022-03-01 14:53:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:53:59,887 INFO L470 AbstractCegarLoop]: Abstraction has 4987 states and 16677 transitions. [2022-03-01 14:53:59,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:53:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 16677 transitions. [2022-03-01 14:53:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-01 14:53:59,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:53:59,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:53:59,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 14:53:59,898 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:53:59,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:53:59,899 INFO L85 PathProgramCache]: Analyzing trace with hash -315138131, now seen corresponding path program 1 times [2022-03-01 14:53:59,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:53:59,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941879923] [2022-03-01 14:53:59,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:53:59,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:53:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:54:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:54:00,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:54:00,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941879923] [2022-03-01 14:54:00,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941879923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:54:00,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:54:00,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 14:54:00,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485269791] [2022-03-01 14:54:00,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:54:00,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 14:54:00,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:54:00,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 14:54:00,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-01 14:54:00,002 INFO L87 Difference]: Start difference. First operand 4987 states and 16677 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:54:00,162 INFO L93 Difference]: Finished difference Result 6271 states and 20671 transitions. [2022-03-01 14:54:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 14:54:00,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-03-01 14:54:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:54:00,175 INFO L225 Difference]: With dead ends: 6271 [2022-03-01 14:54:00,175 INFO L226 Difference]: Without dead ends: 4476 [2022-03-01 14:54:00,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-01 14:54:00,176 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 141 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:54:00,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 359 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:54:00,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4476 states. [2022-03-01 14:54:00,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4476 to 4476. [2022-03-01 14:54:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4475 states have (on average 3.2715083798882683) internal successors, (14640), 4475 states have internal predecessors, (14640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 14640 transitions. [2022-03-01 14:54:00,272 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 14640 transitions. Word has length 60 [2022-03-01 14:54:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:54:00,272 INFO L470 AbstractCegarLoop]: Abstraction has 4476 states and 14640 transitions. [2022-03-01 14:54:00,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:00,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 14640 transitions. [2022-03-01 14:54:00,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-01 14:54:00,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:54:00,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:54:00,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 14:54:00,283 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:54:00,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:54:00,283 INFO L85 PathProgramCache]: Analyzing trace with hash -994182806, now seen corresponding path program 1 times [2022-03-01 14:54:00,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:54:00,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297691983] [2022-03-01 14:54:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:54:00,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:54:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:54:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:54:00,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:54:00,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297691983] [2022-03-01 14:54:00,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297691983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:54:00,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:54:00,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 14:54:00,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531882597] [2022-03-01 14:54:00,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:54:00,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 14:54:00,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:54:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 14:54:00,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-01 14:54:00,360 INFO L87 Difference]: Start difference. First operand 4476 states and 14640 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2022-03-01 14:54:00,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:54:00,517 INFO L93 Difference]: Finished difference Result 4602 states and 14640 transitions. [2022-03-01 14:54:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 14:54:00,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) Word has length 61 [2022-03-01 14:54:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:54:00,528 INFO L225 Difference]: With dead ends: 4602 [2022-03-01 14:54:00,528 INFO L226 Difference]: Without dead ends: 3132 [2022-03-01 14:54:00,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-01 14:54:00,529 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 237 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:54:00,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 412 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:54:00,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2022-03-01 14:54:00,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3132. [2022-03-01 14:54:00,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 3.115298626636857) internal successors, (9754), 3131 states have internal predecessors, (9754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:00,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 9754 transitions. [2022-03-01 14:54:00,599 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 9754 transitions. Word has length 61 [2022-03-01 14:54:00,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:54:00,599 INFO L470 AbstractCegarLoop]: Abstraction has 3132 states and 9754 transitions. [2022-03-01 14:54:00,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2022-03-01 14:54:00,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 9754 transitions. [2022-03-01 14:54:00,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-01 14:54:00,605 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:54:00,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:54:00,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 14:54:00,606 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:54:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:54:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1571184457, now seen corresponding path program 1 times [2022-03-01 14:54:00,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:54:00,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215392764] [2022-03-01 14:54:00,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:54:00,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:54:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:54:00,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:54:00,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:54:00,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215392764] [2022-03-01 14:54:00,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215392764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:54:00,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:54:00,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 14:54:00,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155041222] [2022-03-01 14:54:00,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:54:00,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 14:54:00,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:54:00,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 14:54:00,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-01 14:54:00,679 INFO L87 Difference]: Start difference. First operand 3132 states and 9754 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:00,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:54:00,841 INFO L93 Difference]: Finished difference Result 2592 states and 7900 transitions. [2022-03-01 14:54:00,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 14:54:00,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-03-01 14:54:00,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:54:00,846 INFO L225 Difference]: With dead ends: 2592 [2022-03-01 14:54:00,846 INFO L226 Difference]: Without dead ends: 1728 [2022-03-01 14:54:00,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-03-01 14:54:00,866 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 259 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 14:54:00,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 403 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 14:54:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2022-03-01 14:54:00,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1680. [2022-03-01 14:54:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1679 states have (on average 2.969029184038118) internal successors, (4985), 1679 states have internal predecessors, (4985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:00,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 4985 transitions. [2022-03-01 14:54:00,935 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 4985 transitions. Word has length 63 [2022-03-01 14:54:00,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:54:00,936 INFO L470 AbstractCegarLoop]: Abstraction has 1680 states and 4985 transitions. [2022-03-01 14:54:00,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:00,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 4985 transitions. [2022-03-01 14:54:00,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-01 14:54:00,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:54:00,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:54:00,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 14:54:00,940 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:54:00,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:54:00,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1267708359, now seen corresponding path program 1 times [2022-03-01 14:54:00,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:54:00,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641151028] [2022-03-01 14:54:00,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:54:00,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:54:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:54:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:54:01,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:54:01,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641151028] [2022-03-01 14:54:01,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641151028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:54:01,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:54:01,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 14:54:01,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996378350] [2022-03-01 14:54:01,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:54:01,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 14:54:01,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:54:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 14:54:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-01 14:54:01,159 INFO L87 Difference]: Start difference. First operand 1680 states and 4985 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:54:01,302 INFO L93 Difference]: Finished difference Result 2557 states and 7578 transitions. [2022-03-01 14:54:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 14:54:01,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-03-01 14:54:01,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:54:01,312 INFO L225 Difference]: With dead ends: 2557 [2022-03-01 14:54:01,328 INFO L226 Difference]: Without dead ends: 1337 [2022-03-01 14:54:01,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-01 14:54:01,330 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 138 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 14:54:01,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 530 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 14:54:01,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2022-03-01 14:54:01,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1232. [2022-03-01 14:54:01,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1231 states have (on average 2.9025182778229084) internal successors, (3573), 1231 states have internal predecessors, (3573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 3573 transitions. [2022-03-01 14:54:01,375 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 3573 transitions. Word has length 67 [2022-03-01 14:54:01,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:54:01,375 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 3573 transitions. [2022-03-01 14:54:01,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 3573 transitions. [2022-03-01 14:54:01,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-01 14:54:01,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:54:01,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:54:01,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 14:54:01,391 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:54:01,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:54:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash 680598151, now seen corresponding path program 2 times [2022-03-01 14:54:01,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:54:01,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193857905] [2022-03-01 14:54:01,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:54:01,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:54:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:54:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:54:01,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:54:01,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193857905] [2022-03-01 14:54:01,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193857905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:54:01,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:54:01,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 14:54:01,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413992769] [2022-03-01 14:54:01,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:54:01,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 14:54:01,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:54:01,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 14:54:01,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-01 14:54:01,520 INFO L87 Difference]: Start difference. First operand 1232 states and 3573 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:54:01,592 INFO L93 Difference]: Finished difference Result 1853 states and 5397 transitions. [2022-03-01 14:54:01,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 14:54:01,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-03-01 14:54:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:54:01,595 INFO L225 Difference]: With dead ends: 1853 [2022-03-01 14:54:01,595 INFO L226 Difference]: Without dead ends: 1141 [2022-03-01 14:54:01,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-03-01 14:54:01,596 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 58 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:54:01,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 575 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:54:01,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-03-01 14:54:01,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1141. [2022-03-01 14:54:01,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1140 states have (on average 2.8815789473684212) internal successors, (3285), 1140 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 3285 transitions. [2022-03-01 14:54:01,614 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 3285 transitions. Word has length 67 [2022-03-01 14:54:01,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:54:01,614 INFO L470 AbstractCegarLoop]: Abstraction has 1141 states and 3285 transitions. [2022-03-01 14:54:01,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 3285 transitions. [2022-03-01 14:54:01,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-01 14:54:01,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 14:54:01,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 14:54:01,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 14:54:01,616 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 14:54:01,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 14:54:01,617 INFO L85 PathProgramCache]: Analyzing trace with hash -455496055, now seen corresponding path program 3 times [2022-03-01 14:54:01,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 14:54:01,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080015007] [2022-03-01 14:54:01,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 14:54:01,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 14:54:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 14:54:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 14:54:01,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 14:54:01,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080015007] [2022-03-01 14:54:01,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080015007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 14:54:01,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 14:54:01,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 14:54:01,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79847838] [2022-03-01 14:54:01,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 14:54:01,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 14:54:01,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 14:54:01,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 14:54:01,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-01 14:54:01,702 INFO L87 Difference]: Start difference. First operand 1141 states and 3285 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 14:54:01,763 INFO L93 Difference]: Finished difference Result 1087 states and 3123 transitions. [2022-03-01 14:54:01,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 14:54:01,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-03-01 14:54:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 14:54:01,764 INFO L225 Difference]: With dead ends: 1087 [2022-03-01 14:54:01,764 INFO L226 Difference]: Without dead ends: 0 [2022-03-01 14:54:01,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-01 14:54:01,764 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 141 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 14:54:01,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 347 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 14:54:01,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-01 14:54:01,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-01 14:54:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-01 14:54:01,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-03-01 14:54:01,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 14:54:01,766 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-01 14:54:01,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 14:54:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-01 14:54:01,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-01 14:54:01,768 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-01 14:54:01,768 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-01 14:54:01,768 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-01 14:54:01,769 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-01 14:54:01,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 14:54:01,771 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-03-01 14:54:01,772 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 14:54:01,772 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 14:54:01,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 02:54:01 BasicIcfg [2022-03-01 14:54:01,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 14:54:01,775 INFO L158 Benchmark]: Toolchain (without parser) took 5730.80ms. Allocated memory was 178.3MB in the beginning and 872.4MB in the end (delta: 694.2MB). Free memory was 122.7MB in the beginning and 505.2MB in the end (delta: -382.5MB). Peak memory consumption was 313.2MB. Max. memory is 8.0GB. [2022-03-01 14:54:01,775 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 178.3MB. Free memory is still 140.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 14:54:01,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.99ms. Allocated memory is still 178.3MB. Free memory was 122.6MB in the beginning and 141.9MB in the end (delta: -19.3MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2022-03-01 14:54:01,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.42ms. Allocated memory is still 178.3MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 14:54:01,775 INFO L158 Benchmark]: Boogie Preprocessor took 15.19ms. Allocated memory is still 178.3MB. Free memory was 139.8MB in the beginning and 138.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 14:54:01,775 INFO L158 Benchmark]: RCFGBuilder took 359.19ms. Allocated memory is still 178.3MB. Free memory was 138.4MB in the beginning and 125.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-01 14:54:01,776 INFO L158 Benchmark]: TraceAbstraction took 4792.72ms. Allocated memory was 178.3MB in the beginning and 872.4MB in the end (delta: 694.2MB). Free memory was 125.4MB in the beginning and 505.2MB in the end (delta: -379.8MB). Peak memory consumption was 315.9MB. Max. memory is 8.0GB. [2022-03-01 14:54:01,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 178.3MB. Free memory is still 140.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 531.99ms. Allocated memory is still 178.3MB. Free memory was 122.6MB in the beginning and 141.9MB in the end (delta: -19.3MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.42ms. Allocated memory is still 178.3MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.19ms. Allocated memory is still 178.3MB. Free memory was 139.8MB in the beginning and 138.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 359.19ms. Allocated memory is still 178.3MB. Free memory was 138.4MB in the beginning and 125.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4792.72ms. Allocated memory was 178.3MB in the beginning and 872.4MB in the end (delta: 694.2MB). Free memory was 125.4MB in the beginning and 505.2MB in the end (delta: -379.8MB). Peak memory consumption was 315.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1531 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1531 mSDsluCounter, 4480 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3598 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 586 IncrementalHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 992 mSDtfsCounter, 586 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6591occurred in iteration=0, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 4512 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 556 NumberOfCodeBlocks, 556 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 547 ConstructedInterpolants, 0 QuantifiedInterpolants, 2445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-01 14:54:01,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...