/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-easy1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 19:49:04,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 19:49:04,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 19:49:04,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 19:49:04,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 19:49:04,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 19:49:04,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 19:49:04,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 19:49:04,927 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 19:49:04,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 19:49:04,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 19:49:04,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 19:49:04,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 19:49:04,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 19:49:04,929 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 19:49:04,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 19:49:04,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 19:49:04,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 19:49:04,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 19:49:04,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 19:49:04,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 19:49:04,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 19:49:04,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 19:49:04,931 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 19:49:04,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 19:49:04,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 19:49:04,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 19:49:04,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 19:49:04,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 19:49:04,931 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 19:49:04,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 19:49:04,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:49:04,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 19:49:04,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 19:49:04,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 19:49:04,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 19:49:04,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 19:49:04,933 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 19:49:04,933 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 19:49:04,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 19:49:04,934 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 19:49:05,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 19:49:05,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 19:49:05,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 19:49:05,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 19:49:05,142 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 19:49:05,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy1.wvr.c [2022-03-15 19:49:05,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429f5e2e4/758cf9cb65e34f34b998dc96b61dc3dc/FLAG608d83575 [2022-03-15 19:49:05,653 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 19:49:05,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy1.wvr.c [2022-03-15 19:49:05,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429f5e2e4/758cf9cb65e34f34b998dc96b61dc3dc/FLAG608d83575 [2022-03-15 19:49:05,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429f5e2e4/758cf9cb65e34f34b998dc96b61dc3dc [2022-03-15 19:49:05,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 19:49:05,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 19:49:05,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 19:49:05,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 19:49:05,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 19:49:05,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:49:05" (1/1) ... [2022-03-15 19:49:05,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2295d300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:05, skipping insertion in model container [2022-03-15 19:49:05,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:49:05" (1/1) ... [2022-03-15 19:49:05,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 19:49:05,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 19:49:05,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy1.wvr.c[1876,1889] [2022-03-15 19:49:05,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:49:05,971 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 19:49:05,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy1.wvr.c[1876,1889] [2022-03-15 19:49:05,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:49:06,012 INFO L208 MainTranslator]: Completed translation [2022-03-15 19:49:06,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06 WrapperNode [2022-03-15 19:49:06,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 19:49:06,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 19:49:06,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 19:49:06,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 19:49:06,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,046 INFO L137 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-03-15 19:49:06,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 19:49:06,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 19:49:06,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 19:49:06,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 19:49:06,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 19:49:06,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 19:49:06,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 19:49:06,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 19:49:06,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (1/1) ... [2022-03-15 19:49:06,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:49:06,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:06,120 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) [2022-03-15 19:49:06,146 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 [2022-03-15 19:49:06,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 19:49:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 19:49:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 19:49:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 19:49:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 19:49:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 19:49:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 19:49:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 19:49:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 19:49:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 19:49:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 19:49:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 19:49:06,167 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 19:49:06,235 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 19:49:06,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 19:49:06,384 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 19:49:06,402 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 19:49:06,402 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-15 19:49:06,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:49:06 BoogieIcfgContainer [2022-03-15 19:49:06,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 19:49:06,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 19:49:06,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 19:49:06,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 19:49:06,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 07:49:05" (1/3) ... [2022-03-15 19:49:06,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22609a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:49:06, skipping insertion in model container [2022-03-15 19:49:06,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:49:06" (2/3) ... [2022-03-15 19:49:06,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22609a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:49:06, skipping insertion in model container [2022-03-15 19:49:06,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:49:06" (3/3) ... [2022-03-15 19:49:06,411 INFO L111 eAbstractionObserver]: Analyzing ICFG test-easy1.wvr.c [2022-03-15 19:49:06,415 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 19:49:06,415 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 19:49:06,416 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 19:49:06,416 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 19:49:06,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,489 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,489 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,489 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,489 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,490 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,490 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,490 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,496 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,496 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,496 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:49:06,515 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 19:49:06,566 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 19:49:06,572 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 19:49:06,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 19:49:06,589 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 19:49:06,595 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 84 transitions, 184 flow [2022-03-15 19:49:06,601 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 84 transitions, 184 flow [2022-03-15 19:49:06,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 84 transitions, 184 flow [2022-03-15 19:49:06,668 INFO L129 PetriNetUnfolder]: 6/82 cut-off events. [2022-03-15 19:49:06,668 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-03-15 19:49:06,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 82 events. 6/82 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2022-03-15 19:49:06,677 INFO L116 LiptonReduction]: Number of co-enabled transitions 368 [2022-03-15 19:49:08,845 INFO L131 LiptonReduction]: Checked pairs total: 399 [2022-03-15 19:49:08,845 INFO L133 LiptonReduction]: Total number of compositions: 78 [2022-03-15 19:49:08,851 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 16 transitions, 48 flow [2022-03-15 19:49:08,869 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:08,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:08,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-15 19:49:08,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:08,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:08,875 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:08,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:08,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2032264945, now seen corresponding path program 1 times [2022-03-15 19:49:08,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:08,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242750307] [2022-03-15 19:49:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:08,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:09,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:09,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242750307] [2022-03-15 19:49:09,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242750307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:09,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:09,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 19:49:09,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1163322129] [2022-03-15 19:49:09,088 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:09,091 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:09,103 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2022-03-15 19:49:09,103 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:09,245 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [131#(or (= ~x2~0 ~x1~0) (< ~x1~0 10000))] [2022-03-15 19:49:09,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 19:49:09,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 19:49:09,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:49:09,264 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 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 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:09,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:09,305 INFO L93 Difference]: Finished difference Result 51 states and 107 transitions. [2022-03-15 19:49:09,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 19:49:09,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 11 [2022-03-15 19:49:09,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:09,313 INFO L225 Difference]: With dead ends: 51 [2022-03-15 19:49:09,313 INFO L226 Difference]: Without dead ends: 46 [2022-03-15 19:49:09,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:49:09,317 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:09,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:49:09,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-03-15 19:49:09,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 32. [2022-03-15 19:49:09,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 2.161290322580645) internal successors, (67), 31 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) [2022-03-15 19:49:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 67 transitions. [2022-03-15 19:49:09,344 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 67 transitions. Word has length 11 [2022-03-15 19:49:09,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:09,345 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 67 transitions. [2022-03-15 19:49:09,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:09,345 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 67 transitions. [2022-03-15 19:49:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-15 19:49:09,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:09,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:09,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 19:49:09,346 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:09,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1299599773, now seen corresponding path program 1 times [2022-03-15 19:49:09,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:09,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100014658] [2022-03-15 19:49:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:09,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:09,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:09,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100014658] [2022-03-15 19:49:09,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100014658] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:49:09,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456065026] [2022-03-15 19:49:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:09,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:09,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:09,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:49:09,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 19:49:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:09,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 19:49:09,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:49:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:09,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:49:09,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:09,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456065026] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 19:49:09,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 19:49:09,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2022-03-15 19:49:09,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [737557378] [2022-03-15 19:49:09,656 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:09,657 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:09,661 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 40 transitions. [2022-03-15 19:49:09,661 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:09,879 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [322#(or (< ~x1~0 9999) (<= 10000 ~x1~0) (< ~x2~0 10000)), 319#(< ~x1~0 10000), 320#(or (<= ~x2~0 9999) (< ~x1~0 10000)), 321#(or (not (< ~x1~0 10000)) (< ~x1~0 9999))] [2022-03-15 19:49:09,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 19:49:09,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:09,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 19:49:09,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-03-15 19:49:09,881 INFO L87 Difference]: Start difference. First operand 32 states and 67 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:10,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:10,036 INFO L93 Difference]: Finished difference Result 62 states and 122 transitions. [2022-03-15 19:49:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 19:49:10,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 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 12 [2022-03-15 19:49:10,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:10,038 INFO L225 Difference]: With dead ends: 62 [2022-03-15 19:49:10,038 INFO L226 Difference]: Without dead ends: 62 [2022-03-15 19:49:10,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-15 19:49:10,041 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:10,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:10,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-03-15 19:49:10,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 36. [2022-03-15 19:49:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 2.4) internal successors, (84), 35 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 84 transitions. [2022-03-15 19:49:10,057 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 84 transitions. Word has length 12 [2022-03-15 19:49:10,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:10,061 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 84 transitions. [2022-03-15 19:49:10,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:10,061 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 84 transitions. [2022-03-15 19:49:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-15 19:49:10,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:10,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:10,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 19:49:10,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:10,284 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:10,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:10,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1580397147, now seen corresponding path program 1 times [2022-03-15 19:49:10,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:10,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492438545] [2022-03-15 19:49:10,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:10,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:10,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:10,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492438545] [2022-03-15 19:49:10,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492438545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:49:10,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:49:10,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:49:10,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [566899623] [2022-03-15 19:49:10,333 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:10,334 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:10,336 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 40 transitions. [2022-03-15 19:49:10,336 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:10,446 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [470#(or (= ~x2~0 ~x1~0) (< ~x1~0 10000)), 467#(<= 10000 ~x2~0), 468#(< ~x1~0 10000), 469#(or (< ~x1~0 10000) (<= 10000 ~x2~0))] [2022-03-15 19:49:10,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 19:49:10,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:10,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 19:49:10,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-15 19:49:10,447 INFO L87 Difference]: Start difference. First operand 36 states and 84 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:10,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:10,523 INFO L93 Difference]: Finished difference Result 42 states and 85 transitions. [2022-03-15 19:49:10,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 19:49:10,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 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 12 [2022-03-15 19:49:10,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:10,524 INFO L225 Difference]: With dead ends: 42 [2022-03-15 19:49:10,524 INFO L226 Difference]: Without dead ends: 34 [2022-03-15 19:49:10,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-15 19:49:10,525 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:10,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-03-15 19:49:10,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-03-15 19:49:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 2.212121212121212) internal successors, (73), 33 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 73 transitions. [2022-03-15 19:49:10,529 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 73 transitions. Word has length 12 [2022-03-15 19:49:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:10,530 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 73 transitions. [2022-03-15 19:49:10,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 73 transitions. [2022-03-15 19:49:10,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-03-15 19:49:10,530 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:10,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:10,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 19:49:10,531 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:10,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:10,532 INFO L85 PathProgramCache]: Analyzing trace with hash 342613295, now seen corresponding path program 1 times [2022-03-15 19:49:10,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:10,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24159803] [2022-03-15 19:49:10,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:10,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:10,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:10,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24159803] [2022-03-15 19:49:10,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24159803] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:49:10,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952323263] [2022-03-15 19:49:10,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:10,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:10,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:10,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:49:10,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 19:49:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:10,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-15 19:49:10,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:49:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:10,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:49:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:10,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952323263] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 19:49:10,912 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 19:49:10,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 2] total 9 [2022-03-15 19:49:10,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [750671336] [2022-03-15 19:49:10,912 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:10,913 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:10,916 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 57 transitions. [2022-03-15 19:49:10,916 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:11,408 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [665#(and (or (<= ~x1~0 ~x2~0) (< ~x1~0 10000)) (or (< ~x2~0 (+ ~x1~0 1)) (< ~x1~0 10000))), 666#(and (or (< ~x2~0 (+ ~x1~0 1)) (< ~x1~0 10000)) (or (<= ~x1~0 ~x2~0) (<= ~x1~0 10000))), 667#(and (or (<= ~x1~0 10000) (not (< ~x2~0 10000))) (or (not (< ~x2~0 10000)) (< ~x2~0 ~x1~0))), 670#(or (not (< ~x1~0 10000)) (< ~x2~0 (+ 2 ~x1~0)) (< ~x1~0 9999)), 668#(or (<= ~x1~0 10000) (not (< ~x2~0 10000))), 669#(and (or (not (< ~x1~0 10000)) (< ~x2~0 (+ 2 ~x1~0)) (< ~x1~0 9999)) (or (not (< ~x1~0 10000)) (< ~x1~0 9999) (<= (+ ~x1~0 1) ~x2~0)))] [2022-03-15 19:49:11,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 19:49:11,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:11,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 19:49:11,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-03-15 19:49:11,410 INFO L87 Difference]: Start difference. First operand 34 states and 73 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:11,825 INFO L93 Difference]: Finished difference Result 65 states and 162 transitions. [2022-03-15 19:49:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 19:49:11,825 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-03-15 19:49:11,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:11,827 INFO L225 Difference]: With dead ends: 65 [2022-03-15 19:49:11,827 INFO L226 Difference]: Without dead ends: 44 [2022-03-15 19:49:11,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2022-03-15 19:49:11,828 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:11,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:11,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-03-15 19:49:11,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2022-03-15 19:49:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 2.129032258064516) internal successors, (66), 31 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 66 transitions. [2022-03-15 19:49:11,832 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 66 transitions. Word has length 13 [2022-03-15 19:49:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:11,832 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 66 transitions. [2022-03-15 19:49:11,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:11,832 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 66 transitions. [2022-03-15 19:49:11,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-15 19:49:11,833 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:11,833 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:11,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 19:49:12,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-15 19:49:12,036 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:12,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:12,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1645416261, now seen corresponding path program 2 times [2022-03-15 19:49:12,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:12,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417582283] [2022-03-15 19:49:12,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:12,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:12,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:12,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417582283] [2022-03-15 19:49:12,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417582283] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:49:12,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495890811] [2022-03-15 19:49:12,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 19:49:12,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:12,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:12,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:49:12,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 19:49:12,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 19:49:12,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 19:49:12,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 19:49:12,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:49:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:12,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:49:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:12,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495890811] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 19:49:12,279 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 19:49:12,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-15 19:49:12,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1382215491] [2022-03-15 19:49:12,279 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:12,280 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:12,286 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 74 transitions. [2022-03-15 19:49:12,286 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:12,682 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 9 new interpolants: [931#(or (<= 9999 ~x1~0) (<= ~x2~0 9998) (<= 10000 ~x2~0)), 911#(or (<= ~x2~0 9999) (<= 9999 ~x1~0)), 926#(< ~x1~0 10000), 929#(or (not (< ~x1~0 10000)) (<= ~x2~0 9998) (not (< ~x2~0 10000))), 930#(or (not (< ~x2~0 10000)) (<= (+ ~x2~0 1) ~x1~0)), 928#(or (< ~x1~0 9998) (<= 9999 ~x1~0)), 925#(or (<= ~x2~0 9998) (not (< ~x2~0 10000))), 927#(or (not (< ~x1~0 10000)) (< ~x1~0 9999)), 907#(or (not (< ~x1~0 10000)) (<= ~x2~0 9999))] [2022-03-15 19:49:12,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 19:49:12,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:12,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 19:49:12,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-03-15 19:49:12,683 INFO L87 Difference]: Start difference. First operand 32 states and 66 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:13,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:13,124 INFO L93 Difference]: Finished difference Result 92 states and 187 transitions. [2022-03-15 19:49:13,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 19:49:13,125 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 0 states have call successors, (0), 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 14 [2022-03-15 19:49:13,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:13,126 INFO L225 Difference]: With dead ends: 92 [2022-03-15 19:49:13,126 INFO L226 Difference]: Without dead ends: 84 [2022-03-15 19:49:13,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 30 SyntacticMatches, 12 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=281, Invalid=841, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 19:49:13,127 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 121 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:13,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 0 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:13,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-03-15 19:49:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 44. [2022-03-15 19:49:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 2.2790697674418605) internal successors, (98), 43 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:13,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 98 transitions. [2022-03-15 19:49:13,133 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 98 transitions. Word has length 14 [2022-03-15 19:49:13,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:13,134 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 98 transitions. [2022-03-15 19:49:13,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 98 transitions. [2022-03-15 19:49:13,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 19:49:13,135 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:13,135 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:13,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-15 19:49:13,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:13,350 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:13,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:13,350 INFO L85 PathProgramCache]: Analyzing trace with hash 455755267, now seen corresponding path program 3 times [2022-03-15 19:49:13,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:13,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8795855] [2022-03-15 19:49:13,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 19:49:13,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:13,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8795855] [2022-03-15 19:49:13,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8795855] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:49:13,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281435551] [2022-03-15 19:49:13,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 19:49:13,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:13,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:13,436 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:49:13,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 19:49:13,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-15 19:49:13,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 19:49:13,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-15 19:49:13,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:49:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:13,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:49:13,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 19:49:13,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281435551] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 19:49:13,712 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 19:49:13,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 3] total 12 [2022-03-15 19:49:13,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [713181138] [2022-03-15 19:49:13,713 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:13,714 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:13,719 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 96 transitions. [2022-03-15 19:49:13,719 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:14,534 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 9 new interpolants: [1241#(and (or (not (< ~x2~0 10000)) (<= (+ ~x2~0 1) ~x1~0)) (or (<= ~x1~0 10000) (not (< ~x2~0 10000)))), 1248#(and (or (< ~x1~0 9998) (not (< ~x1~0 9999)) (<= ~x2~0 (+ 2 ~x1~0))) (or (< ~x1~0 9998) (not (< ~x1~0 9999)) (< (+ ~x1~0 1) ~x2~0))), 1243#(and (or (not (< ~x2~0 9999)) (<= (+ 2 ~x2~0) ~x1~0)) (or (not (< ~x2~0 9999)) (<= ~x1~0 10000))), 1244#(or (<= 9999 ~x2~0) (<= ~x1~0 10000)), 1247#(or (not (< ~x1~0 10000)) (<= ~x2~0 10000)), 1246#(and (or (not (< ~x1~0 10000)) (< ~x1~0 9999) (<= ~x2~0 (+ ~x1~0 1))) (or (not (< ~x1~0 10000)) (< ~x1~0 9999) (< ~x1~0 ~x2~0))), 1249#(or (<= 9999 ~x1~0) (<= ~x2~0 10000)), 1242#(or (<= ~x1~0 10000) (not (< ~x2~0 10000))), 1245#(and (or (<= ~x2~0 ~x1~0) (< ~x1~0 10000)) (or (< ~x1~0 (+ ~x2~0 1)) (< ~x1~0 10000)))] [2022-03-15 19:49:14,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 19:49:14,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:14,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 19:49:14,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 19:49:14,535 INFO L87 Difference]: Start difference. First operand 44 states and 98 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:15,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:15,084 INFO L93 Difference]: Finished difference Result 93 states and 217 transitions. [2022-03-15 19:49:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 19:49:15,085 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 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 15 [2022-03-15 19:49:15,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:15,086 INFO L225 Difference]: With dead ends: 93 [2022-03-15 19:49:15,086 INFO L226 Difference]: Without dead ends: 82 [2022-03-15 19:49:15,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 19:49:15,087 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 59 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:15,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 0 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:15,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-03-15 19:49:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 44. [2022-03-15 19:49:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 2.186046511627907) internal successors, (94), 43 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 94 transitions. [2022-03-15 19:49:15,092 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 94 transitions. Word has length 15 [2022-03-15 19:49:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:15,092 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 94 transitions. [2022-03-15 19:49:15,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 94 transitions. [2022-03-15 19:49:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-15 19:49:15,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:15,093 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:15,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 19:49:15,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:15,311 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:15,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:15,312 INFO L85 PathProgramCache]: Analyzing trace with hash 378217597, now seen corresponding path program 4 times [2022-03-15 19:49:15,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:15,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446187686] [2022-03-15 19:49:15,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:15,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:15,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:15,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446187686] [2022-03-15 19:49:15,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446187686] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:49:15,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6973169] [2022-03-15 19:49:15,416 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 19:49:15,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:15,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:15,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:49:15,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 19:49:15,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 19:49:15,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 19:49:15,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 19:49:15,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:49:15,524 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 19:49:15,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:49:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 19:49:15,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6973169] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 19:49:15,574 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 19:49:15,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-03-15 19:49:15,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [827408898] [2022-03-15 19:49:15,574 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:15,575 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:15,580 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 91 transitions. [2022-03-15 19:49:15,581 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:16,020 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [1556#(or (<= 10000 ~x1~0) (< ~x2~0 10000)), 1553#(or (< ~x2~0 9999) (not (< ~x2~0 10000))), 1558#(or (<= ~x2~0 ~x1~0) (not (< ~x2~0 10000))), 1557#(or (<= 10000 ~x1~0) (< ~x2~0 9999) (<= 10000 ~x2~0)), 1554#(or (<= 10001 ~x1~0) (< ~x2~0 10000)), 1555#(or (<= 10001 ~x1~0) (< ~x2~0 9999) (not (< ~x2~0 10000))), 1552#(< ~x2~0 10000)] [2022-03-15 19:49:16,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 19:49:16,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:16,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 19:49:16,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2022-03-15 19:49:16,021 INFO L87 Difference]: Start difference. First operand 44 states and 94 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 13 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:16,224 INFO L93 Difference]: Finished difference Result 94 states and 217 transitions. [2022-03-15 19:49:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 19:49:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 13 states have internal predecessors, (52), 0 states have call successors, (0), 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 15 [2022-03-15 19:49:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:16,226 INFO L225 Difference]: With dead ends: 94 [2022-03-15 19:49:16,226 INFO L226 Difference]: Without dead ends: 88 [2022-03-15 19:49:16,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 45 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2022-03-15 19:49:16,228 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:16,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:16,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-03-15 19:49:16,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 54. [2022-03-15 19:49:16,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 2.2452830188679247) internal successors, (119), 53 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:16,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 119 transitions. [2022-03-15 19:49:16,234 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 119 transitions. Word has length 15 [2022-03-15 19:49:16,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:16,234 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 119 transitions. [2022-03-15 19:49:16,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 13 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:16,234 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 119 transitions. [2022-03-15 19:49:16,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-03-15 19:49:16,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:16,235 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:16,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 19:49:16,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:16,440 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:16,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2141534849, now seen corresponding path program 5 times [2022-03-15 19:49:16,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:16,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079571486] [2022-03-15 19:49:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:16,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:16,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:16,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079571486] [2022-03-15 19:49:16,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079571486] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:49:16,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962626947] [2022-03-15 19:49:16,495 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 19:49:16,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:16,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:16,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:49:16,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 19:49:16,551 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-15 19:49:16,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 19:49:16,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-15 19:49:16,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:49:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:16,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:49:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:16,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962626947] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 19:49:16,687 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 19:49:16,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-03-15 19:49:16,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [610476192] [2022-03-15 19:49:16,687 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:16,689 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:16,694 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 118 transitions. [2022-03-15 19:49:16,694 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:17,303 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 11 new interpolants: [1886#(or (<= 9999 ~x2~0) (< ~x2~0 9998)), 1884#(< ~x2~0 10000), 1892#(or (<= 9999 ~x2~0) (<= 10000 ~x1~0) (< ~x2~0 9998)), 1889#(or (<= 9999 ~x1~0) (< ~x2~0 10000)), 1890#(or (<= 9999 ~x1~0) (< ~x2~0 9999) (not (< ~x2~0 10000))), 1893#(or (<= 9999 ~x2~0) (<= 9999 ~x1~0) (< ~x2~0 9998)), 1888#(or (<= 10000 ~x1~0) (< ~x2~0 9999) (<= 10000 ~x2~0)), 1891#(or (not (< ~x2~0 10000)) (<= ~x2~0 (+ ~x1~0 1))), 1894#(or (<= 9999 ~x2~0) (<= ~x2~0 ~x1~0)), 1887#(or (<= 10000 ~x1~0) (< ~x2~0 10000)), 1885#(or (< ~x2~0 9999) (not (< ~x2~0 10000)))] [2022-03-15 19:49:17,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 19:49:17,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:17,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 19:49:17,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2022-03-15 19:49:17,304 INFO L87 Difference]: Start difference. First operand 54 states and 119 transitions. Second operand has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:17,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:17,876 INFO L93 Difference]: Finished difference Result 206 states and 494 transitions. [2022-03-15 19:49:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 19:49:17,876 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-03-15 19:49:17,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:17,877 INFO L225 Difference]: With dead ends: 206 [2022-03-15 19:49:17,877 INFO L226 Difference]: Without dead ends: 190 [2022-03-15 19:49:17,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=598, Invalid=1658, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 19:49:17,879 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 63 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:17,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 0 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 19:49:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-15 19:49:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 26. [2022-03-15 19:49:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.88) internal successors, (47), 25 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:17,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 47 transitions. [2022-03-15 19:49:17,883 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 47 transitions. Word has length 16 [2022-03-15 19:49:17,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:17,883 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 47 transitions. [2022-03-15 19:49:17,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:49:17,884 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 47 transitions. [2022-03-15 19:49:17,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-03-15 19:49:17,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:49:17,884 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:49:17,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-15 19:49:18,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:18,108 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 19:49:18,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:49:18,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1350517949, now seen corresponding path program 6 times [2022-03-15 19:49:18,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:49:18,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414024130] [2022-03-15 19:49:18,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:49:18,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:49:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:49:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-15 19:49:18,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:49:18,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414024130] [2022-03-15 19:49:18,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414024130] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:49:18,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939270503] [2022-03-15 19:49:18,167 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 19:49:18,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:18,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:49:18,168 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:49:18,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 19:49:18,227 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 19:49:18,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 19:49:18,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-15 19:49:18,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:49:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:18,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:49:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:49:18,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939270503] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 19:49:18,474 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 19:49:18,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 4] total 15 [2022-03-15 19:49:18,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1727710426] [2022-03-15 19:49:18,475 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:49:18,476 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:49:18,482 INFO L252 McrAutomatonBuilder]: Finished intersection with 74 states and 145 transitions. [2022-03-15 19:49:18,482 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:49:19,476 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [2317#(or (< ~x1~0 (+ 2 ~x2~0)) (< ~x2~0 9999) (not (< ~x2~0 10000))), 2319#(and (or (< ~x1~0 (+ ~x2~0 4)) (not (< ~x2~0 9998)) (< ~x2~0 9997)) (or (not (< ~x2~0 9998)) (< ~x2~0 9997) (<= (+ 3 ~x2~0) ~x1~0))), 2320#(or (<= 9998 ~x2~0) (< ~x1~0 (+ ~x2~0 4)) (< ~x2~0 9997)), 2318#(or (<= 9999 ~x2~0) (< ~x1~0 (+ 3 ~x2~0)) (< ~x2~0 9998)), 2314#(and (or (<= ~x2~0 ~x1~0) (<= ~x2~0 10000)) (or (< ~x1~0 (+ ~x2~0 1)) (< ~x2~0 10000))), 2315#(and (or (< ~x2~0 9999) (not (< ~x2~0 10000)) (<= (+ ~x2~0 1) ~x1~0)) (or (< ~x1~0 (+ 2 ~x2~0)) (< ~x2~0 9999) (not (< ~x2~0 10000)))), 2313#(and (or (< ~x1~0 (+ ~x2~0 1)) (< ~x2~0 10000)) (or (<= ~x2~0 ~x1~0) (< ~x2~0 10000))), 2316#(and (or (not (< ~x2~0 9999)) (< ~x1~0 (+ 3 ~x2~0)) (< ~x2~0 9998)) (or (not (< ~x2~0 9999)) (<= (+ 2 ~x2~0) ~x1~0) (< ~x2~0 9998)))] [2022-03-15 19:49:19,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 19:49:19,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:49:19,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 19:49:19,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-03-15 19:49:19,477 INFO L87 Difference]: Start difference. First operand 26 states and 47 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 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) [2022-03-15 19:49:19,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:49:19,839 INFO L93 Difference]: Finished difference Result 55 states and 128 transitions. [2022-03-15 19:49:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 19:49:19,840 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 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 17 [2022-03-15 19:49:19,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:49:19,840 INFO L225 Difference]: With dead ends: 55 [2022-03-15 19:49:19,840 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 19:49:19,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=232, Invalid=890, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 19:49:19,841 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:49:19,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:49:19,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 19:49:19,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 19:49:19,842 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) [2022-03-15 19:49:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 19:49:19,842 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-03-15 19:49:19,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:49:19,842 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 19:49:19,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 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) [2022-03-15 19:49:19,842 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 19:49:19,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 19:49:19,845 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 19:49:19,845 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 19:49:19,845 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 19:49:19,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-15 19:49:20,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:49:20,057 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2022-03-15 19:49:20,059 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 19:49:20,059 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 19:49:20,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 07:49:20 BasicIcfg [2022-03-15 19:49:20,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 19:49:20,061 INFO L158 Benchmark]: Toolchain (without parser) took 14375.65ms. Allocated memory was 188.7MB in the beginning and 317.7MB in the end (delta: 129.0MB). Free memory was 132.1MB in the beginning and 199.6MB in the end (delta: -67.5MB). Peak memory consumption was 62.7MB. Max. memory is 8.0GB. [2022-03-15 19:49:20,061 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 19:49:20,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.82ms. Allocated memory was 188.7MB in the beginning and 264.2MB in the end (delta: 75.5MB). Free memory was 131.9MB in the beginning and 233.4MB in the end (delta: -101.5MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-03-15 19:49:20,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.68ms. Allocated memory is still 264.2MB. Free memory was 233.4MB in the beginning and 231.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:49:20,062 INFO L158 Benchmark]: Boogie Preprocessor took 33.94ms. Allocated memory is still 264.2MB. Free memory was 231.5MB in the beginning and 230.5MB in the end (delta: 997.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 19:49:20,062 INFO L158 Benchmark]: RCFGBuilder took 322.99ms. Allocated memory is still 264.2MB. Free memory was 230.5MB in the beginning and 219.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-15 19:49:20,062 INFO L158 Benchmark]: TraceAbstraction took 13654.99ms. Allocated memory was 264.2MB in the beginning and 317.7MB in the end (delta: 53.5MB). Free memory was 218.7MB in the beginning and 199.6MB in the end (delta: 19.1MB). Peak memory consumption was 72.9MB. Max. memory is 8.0GB. [2022-03-15 19:49:20,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 325.82ms. Allocated memory was 188.7MB in the beginning and 264.2MB in the end (delta: 75.5MB). Free memory was 131.9MB in the beginning and 233.4MB in the end (delta: -101.5MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.68ms. Allocated memory is still 264.2MB. Free memory was 233.4MB in the beginning and 231.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.94ms. Allocated memory is still 264.2MB. Free memory was 231.5MB in the beginning and 230.5MB in the end (delta: 997.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 322.99ms. Allocated memory is still 264.2MB. Free memory was 230.5MB in the beginning and 219.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 13654.99ms. Allocated memory was 264.2MB in the beginning and 317.7MB in the end (delta: 53.5MB). Free memory was 218.7MB in the beginning and 199.6MB in the end (delta: 19.1MB). Peak memory consumption was 72.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 85 PlacesBefore, 21 PlacesAfterwards, 84 TransitionsBefore, 16 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 78 TotalNumberOfCompositions, 399 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 399, positive: 399, positive conditional: 0, positive unconditional: 399, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 196, positive: 196, positive conditional: 0, positive unconditional: 196, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 399, positive: 203, positive conditional: 0, positive unconditional: 203, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 196, unknown conditional: 0, unknown unconditional: 196] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 70]: 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 5 procedures, 95 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13.5s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 476 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 476 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 565 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1383 IncrementalHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 0 mSDtfsCounter, 1383 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 587 GetRequests, 349 SyntacticMatches, 25 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=7, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 328 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 1751 SizeOfPredicates, 16 NumberOfNonLiveVariables, 803 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 23 InterpolantComputations, 3 PerfectInterpolantSequences, 59/124 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! [2022-03-15 19:49:20,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...