/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 02:26:03,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 02:26:03,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 02:26:03,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 02:26:03,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 02:26:03,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 02:26:03,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 02:26:03,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-18 02:26:03,645 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 02:26:03,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 02:26:03,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 02:26:03,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 02:26:03,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 02:26:03,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 02:26:03,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 02:26:03,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 02:26:03,648 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 02:26:03,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 02:26:03,649 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 02:26:03,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 02:26:03,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 02:26:03,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 02:26:03,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 02:26:03,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 02:26:03,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 02:26:03,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 02:26:03,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 02:26:03,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 02:26:03,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 02:26:03,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 02:26:03,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 02:26:03,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 02:26:03,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 02:26:03,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:26:03,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 02:26:03,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 02:26:03,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 02:26:03,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 02:26:03,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 02:26:03,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 02:26:03,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 02:26:03,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 02:26:03,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 02:26:03,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 02:26:03,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 02:26:03,940 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 02:26:03,941 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 02:26:03,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c [2022-01-18 02:26:04,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fccb06284/6912377df4e14af5a93f1841a057b007/FLAG143f075dc [2022-01-18 02:26:04,422 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 02:26:04,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c [2022-01-18 02:26:04,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fccb06284/6912377df4e14af5a93f1841a057b007/FLAG143f075dc [2022-01-18 02:26:04,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fccb06284/6912377df4e14af5a93f1841a057b007 [2022-01-18 02:26:04,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 02:26:04,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 02:26:04,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 02:26:04,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 02:26:04,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 02:26:04,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b398591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04, skipping insertion in model container [2022-01-18 02:26:04,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 02:26:04,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 02:26:04,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c[2434,2447] [2022-01-18 02:26:04,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:26:04,700 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 02:26:04,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c[2434,2447] [2022-01-18 02:26:04,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:26:04,747 INFO L208 MainTranslator]: Completed translation [2022-01-18 02:26:04,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04 WrapperNode [2022-01-18 02:26:04,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 02:26:04,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 02:26:04,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 02:26:04,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 02:26:04,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,794 INFO L137 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 105 [2022-01-18 02:26:04,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 02:26:04,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 02:26:04,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 02:26:04,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 02:26:04,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 02:26:04,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 02:26:04,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 02:26:04,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 02:26:04,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (1/1) ... [2022-01-18 02:26:04,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:26:04,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:04,860 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) [2022-01-18 02:26:04,886 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 [2022-01-18 02:26:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 02:26:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 02:26:04,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 02:26:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 02:26:04,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 02:26:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 02:26:04,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 02:26:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 02:26:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 02:26:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 02:26:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 02:26:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 02:26:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 02:26:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 02:26:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 02:26:04,904 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 02:26:05,017 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 02:26:05,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 02:26:05,302 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 02:26:05,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 02:26:05,311 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 02:26:05,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:26:05 BoogieIcfgContainer [2022-01-18 02:26:05,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 02:26:05,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 02:26:05,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 02:26:05,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 02:26:05,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 02:26:04" (1/3) ... [2022-01-18 02:26:05,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fade81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:26:05, skipping insertion in model container [2022-01-18 02:26:05,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:26:04" (2/3) ... [2022-01-18 02:26:05,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fade81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:26:05, skipping insertion in model container [2022-01-18 02:26:05,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:26:05" (3/3) ... [2022-01-18 02:26:05,319 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c [2022-01-18 02:26:05,323 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 02:26:05,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 02:26:05,324 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 02:26:05,324 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 02:26:05,382 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,382 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,382 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,383 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,386 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,386 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,391 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,394 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,395 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,395 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,395 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,395 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,396 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,398 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,398 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,398 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,399 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,399 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,400 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,400 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,400 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,400 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,400 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,402 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,402 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,406 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,407 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,407 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,408 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,408 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,408 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,408 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,409 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,409 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,412 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,412 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,413 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,414 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,414 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,414 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,415 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,419 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,422 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,422 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,422 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,423 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,423 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,423 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,423 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,424 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,424 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,424 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,424 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,424 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,424 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,425 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,426 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,426 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,426 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,427 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,427 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,427 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,428 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,428 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,428 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,428 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,428 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,428 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,429 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,430 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,430 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,430 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,430 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,430 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,433 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,433 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,440 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,440 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,441 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,442 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:26:05,450 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 02:26:05,482 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 02:26:05,488 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 02:26:05,489 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 02:26:05,501 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 179 places, 184 transitions, 392 flow [2022-01-18 02:26:06,350 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22492 states, 22491 states have (on average 3.977679960873238) internal successors, (89462), 22491 states have internal predecessors, (89462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 22492 states, 22491 states have (on average 3.977679960873238) internal successors, (89462), 22491 states have internal predecessors, (89462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:06,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 02:26:06,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:06,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:06,759 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:06,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1826430064, now seen corresponding path program 1 times [2022-01-18 02:26:06,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:06,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026470254] [2022-01-18 02:26:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:06,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:07,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:07,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026470254] [2022-01-18 02:26:07,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026470254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:07,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:26:07,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 02:26:07,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439991100] [2022-01-18 02:26:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:07,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 02:26:07,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:07,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 02:26:07,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:26:07,116 INFO L87 Difference]: Start difference. First operand has 22492 states, 22491 states have (on average 3.977679960873238) internal successors, (89462), 22491 states have internal predecessors, (89462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:07,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:07,584 INFO L93 Difference]: Finished difference Result 22492 states and 85674 transitions. [2022-01-18 02:26:07,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 02:26:07,586 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 02:26:07,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:07,873 INFO L225 Difference]: With dead ends: 22492 [2022-01-18 02:26:07,874 INFO L226 Difference]: Without dead ends: 22488 [2022-01-18 02:26:07,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:26:07,880 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:07,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:26:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22488 states. [2022-01-18 02:26:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22488 to 22488. [2022-01-18 02:26:08,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22488 states, 22487 states have (on average 3.8097567483434873) internal successors, (85670), 22487 states have internal predecessors, (85670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22488 states to 22488 states and 85670 transitions. [2022-01-18 02:26:09,294 INFO L78 Accepts]: Start accepts. Automaton has 22488 states and 85670 transitions. Word has length 109 [2022-01-18 02:26:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:09,299 INFO L470 AbstractCegarLoop]: Abstraction has 22488 states and 85670 transitions. [2022-01-18 02:26:09,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 22488 states and 85670 transitions. [2022-01-18 02:26:09,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 02:26:09,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:09,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:09,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 02:26:09,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:09,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1142567077, now seen corresponding path program 1 times [2022-01-18 02:26:09,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:09,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562932971] [2022-01-18 02:26:09,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:09,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:09,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:09,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562932971] [2022-01-18 02:26:09,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562932971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:09,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:26:09,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 02:26:09,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099153075] [2022-01-18 02:26:09,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:09,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 02:26:09,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:09,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 02:26:09,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-18 02:26:09,632 INFO L87 Difference]: Start difference. First operand 22488 states and 85670 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:10,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:10,172 INFO L93 Difference]: Finished difference Result 22507 states and 85689 transitions. [2022-01-18 02:26:10,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 02:26:10,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 02:26:10,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:10,288 INFO L225 Difference]: With dead ends: 22507 [2022-01-18 02:26:10,288 INFO L226 Difference]: Without dead ends: 22494 [2022-01-18 02:26:10,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-18 02:26:10,293 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 312 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:10,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 664 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:26:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22494 states. [2022-01-18 02:26:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22494 to 22489. [2022-01-18 02:26:11,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22489 states, 22488 states have (on average 3.809631803628602) internal successors, (85671), 22488 states have internal predecessors, (85671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:11,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22489 states to 22489 states and 85671 transitions. [2022-01-18 02:26:11,273 INFO L78 Accepts]: Start accepts. Automaton has 22489 states and 85671 transitions. Word has length 109 [2022-01-18 02:26:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:11,275 INFO L470 AbstractCegarLoop]: Abstraction has 22489 states and 85671 transitions. [2022-01-18 02:26:11,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 22489 states and 85671 transitions. [2022-01-18 02:26:11,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-18 02:26:11,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:11,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:11,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 02:26:11,384 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:11,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:11,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1773050963, now seen corresponding path program 1 times [2022-01-18 02:26:11,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:11,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560683151] [2022-01-18 02:26:11,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:11,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:26:11,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:11,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560683151] [2022-01-18 02:26:11,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560683151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:11,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:26:11,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 02:26:11,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900671049] [2022-01-18 02:26:11,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:11,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:26:11,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:11,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:26:11,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:26:11,625 INFO L87 Difference]: Start difference. First operand 22489 states and 85671 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:12,400 INFO L93 Difference]: Finished difference Result 49972 states and 192087 transitions. [2022-01-18 02:26:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:26:12,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-18 02:26:12,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:12,755 INFO L225 Difference]: With dead ends: 49972 [2022-01-18 02:26:12,756 INFO L226 Difference]: Without dead ends: 49822 [2022-01-18 02:26:12,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 02:26:12,757 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 269 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:12,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 837 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:26:12,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49822 states. [2022-01-18 02:26:13,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49822 to 23099. [2022-01-18 02:26:14,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23099 states, 23098 states have (on average 3.799549744566629) internal successors, (87762), 23098 states have internal predecessors, (87762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23099 states to 23099 states and 87762 transitions. [2022-01-18 02:26:14,116 INFO L78 Accepts]: Start accepts. Automaton has 23099 states and 87762 transitions. Word has length 116 [2022-01-18 02:26:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:14,118 INFO L470 AbstractCegarLoop]: Abstraction has 23099 states and 87762 transitions. [2022-01-18 02:26:14,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:14,118 INFO L276 IsEmpty]: Start isEmpty. Operand 23099 states and 87762 transitions. [2022-01-18 02:26:14,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 02:26:14,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:14,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:14,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 02:26:14,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:14,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:14,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1662951717, now seen corresponding path program 1 times [2022-01-18 02:26:14,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:14,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490186960] [2022-01-18 02:26:14,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:14,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:14,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:14,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490186960] [2022-01-18 02:26:14,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490186960] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:14,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262803760] [2022-01-18 02:26:14,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:14,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:14,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:14,360 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) [2022-01-18 02:26:14,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 02:26:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:14,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 02:26:14,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:14,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:26:15,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:15,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262803760] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:26:15,140 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:26:15,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-18 02:26:15,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375000444] [2022-01-18 02:26:15,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:26:15,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 02:26:15,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:15,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 02:26:15,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-01-18 02:26:15,143 INFO L87 Difference]: Start difference. First operand 23099 states and 87762 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:15,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:15,783 INFO L93 Difference]: Finished difference Result 30919 states and 115103 transitions. [2022-01-18 02:26:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 02:26:15,784 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 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 126 [2022-01-18 02:26:15,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:15,915 INFO L225 Difference]: With dead ends: 30919 [2022-01-18 02:26:15,915 INFO L226 Difference]: Without dead ends: 30847 [2022-01-18 02:26:15,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2022-01-18 02:26:15,917 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 1358 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:15,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1358 Valid, 1620 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:26:15,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30847 states. [2022-01-18 02:26:16,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30847 to 25820. [2022-01-18 02:26:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25820 states, 25819 states have (on average 3.7945698903907976) internal successors, (97972), 25819 states have internal predecessors, (97972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25820 states to 25820 states and 97972 transitions. [2022-01-18 02:26:16,873 INFO L78 Accepts]: Start accepts. Automaton has 25820 states and 97972 transitions. Word has length 126 [2022-01-18 02:26:16,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:16,874 INFO L470 AbstractCegarLoop]: Abstraction has 25820 states and 97972 transitions. [2022-01-18 02:26:16,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 25820 states and 97972 transitions. [2022-01-18 02:26:16,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 02:26:16,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:16,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:16,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 02:26:17,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:17,156 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:17,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:17,157 INFO L85 PathProgramCache]: Analyzing trace with hash -707250143, now seen corresponding path program 1 times [2022-01-18 02:26:17,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:17,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240211194] [2022-01-18 02:26:17,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:17,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:26:17,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:17,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240211194] [2022-01-18 02:26:17,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240211194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:17,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:26:17,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 02:26:17,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023681223] [2022-01-18 02:26:17,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:17,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 02:26:17,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:17,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 02:26:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 02:26:17,221 INFO L87 Difference]: Start difference. First operand 25820 states and 97972 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:17,490 INFO L93 Difference]: Finished difference Result 39241 states and 149311 transitions. [2022-01-18 02:26:17,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:26:17,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-01-18 02:26:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:17,923 INFO L225 Difference]: With dead ends: 39241 [2022-01-18 02:26:17,923 INFO L226 Difference]: Without dead ends: 39241 [2022-01-18 02:26:17,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:26:17,944 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 149 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:17,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 505 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:26:18,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39241 states. [2022-01-18 02:26:18,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39241 to 29846. [2022-01-18 02:26:18,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29846 states, 29845 states have (on average 3.8436589043390854) internal successors, (114714), 29845 states have internal predecessors, (114714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29846 states to 29846 states and 114714 transitions. [2022-01-18 02:26:18,992 INFO L78 Accepts]: Start accepts. Automaton has 29846 states and 114714 transitions. Word has length 126 [2022-01-18 02:26:18,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:18,993 INFO L470 AbstractCegarLoop]: Abstraction has 29846 states and 114714 transitions. [2022-01-18 02:26:18,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:18,993 INFO L276 IsEmpty]: Start isEmpty. Operand 29846 states and 114714 transitions. [2022-01-18 02:26:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-18 02:26:19,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:19,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:19,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 02:26:19,063 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:19,064 INFO L85 PathProgramCache]: Analyzing trace with hash 798489673, now seen corresponding path program 1 times [2022-01-18 02:26:19,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:19,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569776527] [2022-01-18 02:26:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:19,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:26:19,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:19,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569776527] [2022-01-18 02:26:19,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569776527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:19,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:26:19,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 02:26:19,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105056409] [2022-01-18 02:26:19,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:19,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 02:26:19,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:19,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 02:26:19,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 02:26:19,138 INFO L87 Difference]: Start difference. First operand 29846 states and 114714 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:19,508 INFO L93 Difference]: Finished difference Result 46687 states and 178885 transitions. [2022-01-18 02:26:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:26:19,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-01-18 02:26:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:19,712 INFO L225 Difference]: With dead ends: 46687 [2022-01-18 02:26:19,712 INFO L226 Difference]: Without dead ends: 46687 [2022-01-18 02:26:19,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:26:19,715 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 168 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:19,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 515 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:26:20,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46687 states. [2022-01-18 02:26:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46687 to 34886. [2022-01-18 02:26:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34886 states, 34885 states have (on average 3.887286799484019) internal successors, (135608), 34885 states have internal predecessors, (135608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34886 states to 34886 states and 135608 transitions. [2022-01-18 02:26:21,347 INFO L78 Accepts]: Start accepts. Automaton has 34886 states and 135608 transitions. Word has length 126 [2022-01-18 02:26:21,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:21,348 INFO L470 AbstractCegarLoop]: Abstraction has 34886 states and 135608 transitions. [2022-01-18 02:26:21,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 34886 states and 135608 transitions. [2022-01-18 02:26:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 02:26:21,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:21,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:21,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 02:26:21,425 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:21,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:21,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2076160398, now seen corresponding path program 1 times [2022-01-18 02:26:21,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:21,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339586775] [2022-01-18 02:26:21,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:21,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:21,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:21,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339586775] [2022-01-18 02:26:21,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339586775] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:21,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57490445] [2022-01-18 02:26:21,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:21,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:21,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:21,671 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) [2022-01-18 02:26:21,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 02:26:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:21,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 02:26:21,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:22,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:26:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:22,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57490445] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:26:22,824 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:26:22,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2022-01-18 02:26:22,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656388090] [2022-01-18 02:26:22,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:26:22,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 02:26:22,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:22,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 02:26:22,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2022-01-18 02:26:22,826 INFO L87 Difference]: Start difference. First operand 34886 states and 135608 transitions. Second operand has 30 states, 30 states have (on average 8.366666666666667) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:23,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:23,734 INFO L93 Difference]: Finished difference Result 34495 states and 131908 transitions. [2022-01-18 02:26:23,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 02:26:23,734 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.366666666666667) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 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 129 [2022-01-18 02:26:23,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:24,126 INFO L225 Difference]: With dead ends: 34495 [2022-01-18 02:26:24,126 INFO L226 Difference]: Without dead ends: 34261 [2022-01-18 02:26:24,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=438, Invalid=1542, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 02:26:24,140 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 1400 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:24,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1400 Valid, 2042 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:26:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34261 states. [2022-01-18 02:26:24,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34261 to 33338. [2022-01-18 02:26:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33338 states, 33337 states have (on average 3.853436122026577) internal successors, (128462), 33337 states have internal predecessors, (128462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:25,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33338 states to 33338 states and 128462 transitions. [2022-01-18 02:26:25,196 INFO L78 Accepts]: Start accepts. Automaton has 33338 states and 128462 transitions. Word has length 129 [2022-01-18 02:26:25,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:25,196 INFO L470 AbstractCegarLoop]: Abstraction has 33338 states and 128462 transitions. [2022-01-18 02:26:25,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.366666666666667) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:25,196 INFO L276 IsEmpty]: Start isEmpty. Operand 33338 states and 128462 transitions. [2022-01-18 02:26:25,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 02:26:25,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:25,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:25,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 02:26:25,508 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,SelfDestructingSolverStorable6 [2022-01-18 02:26:25,508 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:25,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:25,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1105932305, now seen corresponding path program 1 times [2022-01-18 02:26:25,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:25,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33681473] [2022-01-18 02:26:25,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:25,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:25,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:25,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33681473] [2022-01-18 02:26:25,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33681473] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:25,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060492241] [2022-01-18 02:26:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:25,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:25,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:25,809 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) [2022-01-18 02:26:25,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 02:26:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:25,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 02:26:25,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:26,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:26,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:26:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:26,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060492241] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:26:26,805 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:26:26,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2022-01-18 02:26:26,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561377003] [2022-01-18 02:26:26,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:26:26,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 02:26:26,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:26,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 02:26:26,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=812, Unknown=0, NotChecked=0, Total=930 [2022-01-18 02:26:26,809 INFO L87 Difference]: Start difference. First operand 33338 states and 128462 transitions. Second operand has 31 states, 31 states have (on average 7.419354838709677) internal successors, (230), 31 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:27,756 INFO L93 Difference]: Finished difference Result 31627 states and 122612 transitions. [2022-01-18 02:26:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 02:26:27,757 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.419354838709677) internal successors, (230), 31 states have internal predecessors, (230), 0 states have call successors, (0), 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 129 [2022-01-18 02:26:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:27,862 INFO L225 Difference]: With dead ends: 31627 [2022-01-18 02:26:27,862 INFO L226 Difference]: Without dead ends: 31289 [2022-01-18 02:26:27,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=379, Invalid=1601, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 02:26:27,864 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 1463 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:27,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 2762 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 02:26:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31289 states. [2022-01-18 02:26:28,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31289 to 31284. [2022-01-18 02:26:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31284 states, 31283 states have (on average 3.892113927692357) internal successors, (121757), 31283 states have internal predecessors, (121757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31284 states to 31284 states and 121757 transitions. [2022-01-18 02:26:28,851 INFO L78 Accepts]: Start accepts. Automaton has 31284 states and 121757 transitions. Word has length 129 [2022-01-18 02:26:28,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:28,851 INFO L470 AbstractCegarLoop]: Abstraction has 31284 states and 121757 transitions. [2022-01-18 02:26:28,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.419354838709677) internal successors, (230), 31 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 31284 states and 121757 transitions. [2022-01-18 02:26:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:26:28,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:28,927 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:28,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 02:26:29,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:29,138 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:29,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:29,138 INFO L85 PathProgramCache]: Analyzing trace with hash 750077751, now seen corresponding path program 2 times [2022-01-18 02:26:29,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:29,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236755292] [2022-01-18 02:26:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:29,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:29,267 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:29,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:29,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236755292] [2022-01-18 02:26:29,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236755292] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:29,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215108891] [2022-01-18 02:26:29,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:26:29,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:29,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:29,270 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) [2022-01-18 02:26:29,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 02:26:29,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:26:29,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:26:29,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:26:29,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:26:29,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 02:26:29,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215108891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:29,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 02:26:29,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2022-01-18 02:26:29,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035776998] [2022-01-18 02:26:29,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:29,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:26:29,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:29,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:26:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-01-18 02:26:29,642 INFO L87 Difference]: Start difference. First operand 31284 states and 121757 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:30,635 INFO L93 Difference]: Finished difference Result 98126 states and 378917 transitions. [2022-01-18 02:26:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 02:26:30,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 133 [2022-01-18 02:26:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:31,015 INFO L225 Difference]: With dead ends: 98126 [2022-01-18 02:26:31,016 INFO L226 Difference]: Without dead ends: 98126 [2022-01-18 02:26:31,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2022-01-18 02:26:31,017 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 566 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:31,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [566 Valid, 1057 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:26:31,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98126 states. [2022-01-18 02:26:32,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98126 to 31993. [2022-01-18 02:26:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31993 states, 31992 states have (on average 3.8835021255313826) internal successors, (124241), 31992 states have internal predecessors, (124241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31993 states to 31993 states and 124241 transitions. [2022-01-18 02:26:33,047 INFO L78 Accepts]: Start accepts. Automaton has 31993 states and 124241 transitions. Word has length 133 [2022-01-18 02:26:33,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:33,048 INFO L470 AbstractCegarLoop]: Abstraction has 31993 states and 124241 transitions. [2022-01-18 02:26:33,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:33,048 INFO L276 IsEmpty]: Start isEmpty. Operand 31993 states and 124241 transitions. [2022-01-18 02:26:33,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:26:33,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:33,120 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:33,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 02:26:33,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:33,332 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:33,333 INFO L85 PathProgramCache]: Analyzing trace with hash -594103393, now seen corresponding path program 3 times [2022-01-18 02:26:33,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:33,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934431673] [2022-01-18 02:26:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:33,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:33,483 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:33,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:33,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934431673] [2022-01-18 02:26:33,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934431673] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:33,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286385870] [2022-01-18 02:26:33,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 02:26:33,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:33,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:33,488 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) [2022-01-18 02:26:33,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 02:26:33,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 02:26:33,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:26:33,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:26:33,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:26:33,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 02:26:33,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286385870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:33,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 02:26:33,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2022-01-18 02:26:33,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728212128] [2022-01-18 02:26:33,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:33,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:26:33,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:33,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:26:33,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-01-18 02:26:33,820 INFO L87 Difference]: Start difference. First operand 31993 states and 124241 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:35,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:35,197 INFO L93 Difference]: Finished difference Result 123155 states and 473630 transitions. [2022-01-18 02:26:35,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 02:26:35,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 133 [2022-01-18 02:26:35,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:35,848 INFO L225 Difference]: With dead ends: 123155 [2022-01-18 02:26:35,849 INFO L226 Difference]: Without dead ends: 123155 [2022-01-18 02:26:35,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2022-01-18 02:26:35,849 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 618 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:35,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 1005 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:26:36,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123155 states. [2022-01-18 02:26:37,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123155 to 32060. [2022-01-18 02:26:37,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32060 states, 32059 states have (on average 3.8874575002339435) internal successors, (124628), 32059 states have internal predecessors, (124628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32060 states to 32060 states and 124628 transitions. [2022-01-18 02:26:38,247 INFO L78 Accepts]: Start accepts. Automaton has 32060 states and 124628 transitions. Word has length 133 [2022-01-18 02:26:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:38,249 INFO L470 AbstractCegarLoop]: Abstraction has 32060 states and 124628 transitions. [2022-01-18 02:26:38,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 32060 states and 124628 transitions. [2022-01-18 02:26:38,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:26:38,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:38,350 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:38,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 02:26:38,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-18 02:26:38,569 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:38,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:38,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1387474595, now seen corresponding path program 4 times [2022-01-18 02:26:38,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:38,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216421818] [2022-01-18 02:26:38,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:38,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:38,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:38,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216421818] [2022-01-18 02:26:38,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216421818] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:38,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211759687] [2022-01-18 02:26:38,689 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 02:26:38,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:38,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:38,690 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) [2022-01-18 02:26:38,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 02:26:38,776 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 02:26:38,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:26:38,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:26:38,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:39,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:26:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:39,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211759687] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:39,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:26:39,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 25 [2022-01-18 02:26:39,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365951107] [2022-01-18 02:26:39,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:39,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 02:26:39,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:39,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 02:26:39,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-01-18 02:26:39,480 INFO L87 Difference]: Start difference. First operand 32060 states and 124628 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:40,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:40,084 INFO L93 Difference]: Finished difference Result 60065 states and 229744 transitions. [2022-01-18 02:26:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 02:26:40,085 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:26:40,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:40,305 INFO L225 Difference]: With dead ends: 60065 [2022-01-18 02:26:40,305 INFO L226 Difference]: Without dead ends: 60065 [2022-01-18 02:26:40,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 250 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=251, Invalid=939, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 02:26:40,306 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 1137 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:40,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 801 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:26:40,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60065 states. [2022-01-18 02:26:41,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60065 to 32255. [2022-01-18 02:26:41,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32255 states, 32254 states have (on average 3.889502077261735) internal successors, (125452), 32254 states have internal predecessors, (125452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:41,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32255 states to 32255 states and 125452 transitions. [2022-01-18 02:26:41,613 INFO L78 Accepts]: Start accepts. Automaton has 32255 states and 125452 transitions. Word has length 133 [2022-01-18 02:26:41,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:41,613 INFO L470 AbstractCegarLoop]: Abstraction has 32255 states and 125452 transitions. [2022-01-18 02:26:41,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:41,613 INFO L276 IsEmpty]: Start isEmpty. Operand 32255 states and 125452 transitions. [2022-01-18 02:26:41,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:26:41,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:41,685 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:41,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 02:26:41,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:41,897 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash -788184177, now seen corresponding path program 5 times [2022-01-18 02:26:41,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:41,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784204687] [2022-01-18 02:26:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:41,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:42,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:42,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784204687] [2022-01-18 02:26:42,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784204687] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:42,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545494334] [2022-01-18 02:26:42,291 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 02:26:42,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:42,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:42,292 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) [2022-01-18 02:26:42,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 02:26:42,392 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 02:26:42,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:26:42,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:26:42,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:42,622 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:26:42,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 02:26:42,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545494334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:42,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 02:26:42,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2022-01-18 02:26:42,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023289625] [2022-01-18 02:26:42,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:42,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:26:42,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:42,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:26:42,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-01-18 02:26:42,623 INFO L87 Difference]: Start difference. First operand 32255 states and 125452 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:43,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:43,576 INFO L93 Difference]: Finished difference Result 118696 states and 459293 transitions. [2022-01-18 02:26:43,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 02:26:43,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 133 [2022-01-18 02:26:43,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:44,650 INFO L225 Difference]: With dead ends: 118696 [2022-01-18 02:26:44,650 INFO L226 Difference]: Without dead ends: 118696 [2022-01-18 02:26:44,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2022-01-18 02:26:44,651 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 555 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:44,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [555 Valid, 1214 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:26:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118696 states. [2022-01-18 02:26:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118696 to 32389. [2022-01-18 02:26:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32389 states, 32388 states have (on average 3.895238977399037) internal successors, (126159), 32388 states have internal predecessors, (126159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32389 states to 32389 states and 126159 transitions. [2022-01-18 02:26:46,397 INFO L78 Accepts]: Start accepts. Automaton has 32389 states and 126159 transitions. Word has length 133 [2022-01-18 02:26:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:46,398 INFO L470 AbstractCegarLoop]: Abstraction has 32389 states and 126159 transitions. [2022-01-18 02:26:46,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 32389 states and 126159 transitions. [2022-01-18 02:26:46,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:26:46,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:46,477 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:46,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 02:26:46,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:46,678 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:46,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1193393811, now seen corresponding path program 6 times [2022-01-18 02:26:46,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:46,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792460289] [2022-01-18 02:26:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:46,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:46,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:46,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:46,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792460289] [2022-01-18 02:26:46,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792460289] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:46,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699556345] [2022-01-18 02:26:46,772 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 02:26:46,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:46,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:46,774 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:26:46,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 02:26:46,872 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 02:26:46,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:26:46,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:26:46,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:47,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:26:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:47,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699556345] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:47,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:26:47,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 25 [2022-01-18 02:26:47,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909329201] [2022-01-18 02:26:47,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:47,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 02:26:47,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:47,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 02:26:47,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-01-18 02:26:47,504 INFO L87 Difference]: Start difference. First operand 32389 states and 126159 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:47,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:47,932 INFO L93 Difference]: Finished difference Result 43445 states and 166127 transitions. [2022-01-18 02:26:47,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 02:26:47,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:26:47,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:48,604 INFO L225 Difference]: With dead ends: 43445 [2022-01-18 02:26:48,604 INFO L226 Difference]: Without dead ends: 43445 [2022-01-18 02:26:48,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 250 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=896, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 02:26:48,617 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 992 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:48,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 753 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:26:48,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43445 states. [2022-01-18 02:26:49,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43445 to 32247. [2022-01-18 02:26:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32247 states, 32246 states have (on average 3.886838677665447) internal successors, (125335), 32246 states have internal predecessors, (125335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32247 states to 32247 states and 125335 transitions. [2022-01-18 02:26:49,369 INFO L78 Accepts]: Start accepts. Automaton has 32247 states and 125335 transitions. Word has length 133 [2022-01-18 02:26:49,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:49,369 INFO L470 AbstractCegarLoop]: Abstraction has 32247 states and 125335 transitions. [2022-01-18 02:26:49,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:49,370 INFO L276 IsEmpty]: Start isEmpty. Operand 32247 states and 125335 transitions. [2022-01-18 02:26:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:26:49,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:49,446 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:49,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 02:26:49,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-18 02:26:49,647 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:49,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:49,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1419835785, now seen corresponding path program 7 times [2022-01-18 02:26:49,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:49,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437753658] [2022-01-18 02:26:49,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:49,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:50,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:50,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437753658] [2022-01-18 02:26:50,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437753658] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:50,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798738529] [2022-01-18 02:26:50,255 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 02:26:50,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:50,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:50,257 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:26:50,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 02:26:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:50,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:26:50,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:50,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:26:50,923 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:50,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798738529] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:50,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:26:50,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 23 [2022-01-18 02:26:50,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791180976] [2022-01-18 02:26:50,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:50,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 02:26:50,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:50,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 02:26:50,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-01-18 02:26:50,925 INFO L87 Difference]: Start difference. First operand 32247 states and 125335 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:51,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:51,405 INFO L93 Difference]: Finished difference Result 36546 states and 140261 transitions. [2022-01-18 02:26:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 02:26:51,406 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:26:51,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:51,530 INFO L225 Difference]: With dead ends: 36546 [2022-01-18 02:26:51,530 INFO L226 Difference]: Without dead ends: 36546 [2022-01-18 02:26:51,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 02:26:51,531 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 756 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:51,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 1026 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:26:51,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36546 states. [2022-01-18 02:26:52,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36546 to 32301. [2022-01-18 02:26:52,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32301 states, 32300 states have (on average 3.8863157894736844) internal successors, (125528), 32300 states have internal predecessors, (125528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:52,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32301 states to 32301 states and 125528 transitions. [2022-01-18 02:26:52,656 INFO L78 Accepts]: Start accepts. Automaton has 32301 states and 125528 transitions. Word has length 133 [2022-01-18 02:26:52,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:52,656 INFO L470 AbstractCegarLoop]: Abstraction has 32301 states and 125528 transitions. [2022-01-18 02:26:52,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:52,657 INFO L276 IsEmpty]: Start isEmpty. Operand 32301 states and 125528 transitions. [2022-01-18 02:26:52,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:26:52,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:52,725 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:52,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-01-18 02:26:52,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-01-18 02:26:52,925 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:52,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:52,926 INFO L85 PathProgramCache]: Analyzing trace with hash -902220473, now seen corresponding path program 8 times [2022-01-18 02:26:52,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:52,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030190411] [2022-01-18 02:26:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:52,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:53,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:53,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030190411] [2022-01-18 02:26:53,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030190411] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:53,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74619392] [2022-01-18 02:26:53,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:26:53,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:53,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:53,021 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:26:53,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 02:26:53,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:26:53,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:26:53,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:26:53,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:53,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:26:53,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 02:26:53,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74619392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:53,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 02:26:53,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-01-18 02:26:53,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089530172] [2022-01-18 02:26:53,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:53,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:26:53,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:53,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:26:53,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 02:26:53,364 INFO L87 Difference]: Start difference. First operand 32301 states and 125528 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:54,650 INFO L93 Difference]: Finished difference Result 128097 states and 490402 transitions. [2022-01-18 02:26:54,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 02:26:54,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 133 [2022-01-18 02:26:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:26:55,255 INFO L225 Difference]: With dead ends: 128097 [2022-01-18 02:26:55,255 INFO L226 Difference]: Without dead ends: 128097 [2022-01-18 02:26:55,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-01-18 02:26:55,256 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 471 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:26:55,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1603 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:26:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128097 states. [2022-01-18 02:26:57,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128097 to 32474. [2022-01-18 02:26:57,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32474 states, 32473 states have (on average 3.889107874233979) internal successors, (126291), 32473 states have internal predecessors, (126291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32474 states to 32474 states and 126291 transitions. [2022-01-18 02:26:57,264 INFO L78 Accepts]: Start accepts. Automaton has 32474 states and 126291 transitions. Word has length 133 [2022-01-18 02:26:57,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:26:57,264 INFO L470 AbstractCegarLoop]: Abstraction has 32474 states and 126291 transitions. [2022-01-18 02:26:57,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand 32474 states and 126291 transitions. [2022-01-18 02:26:57,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:26:57,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:26:57,339 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:26:57,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 02:26:57,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-01-18 02:26:57,540 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:26:57,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:26:57,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1080071459, now seen corresponding path program 9 times [2022-01-18 02:26:57,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:26:57,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814001665] [2022-01-18 02:26:57,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:26:57,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:26:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:26:57,649 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:26:57,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:26:57,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814001665] [2022-01-18 02:26:57,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814001665] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:26:57,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53671166] [2022-01-18 02:26:57,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 02:26:57,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:26:57,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:26:57,652 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:26:57,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 02:26:57,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 02:26:57,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:26:57,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:26:58,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:26:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:26:58,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 02:26:58,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53671166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:26:58,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 02:26:58,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-01-18 02:26:58,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320363404] [2022-01-18 02:26:58,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:26:58,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:26:58,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:26:58,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:26:58,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 02:26:58,426 INFO L87 Difference]: Start difference. First operand 32474 states and 126291 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:26:59,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:26:59,500 INFO L93 Difference]: Finished difference Result 147069 states and 563539 transitions. [2022-01-18 02:26:59,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 02:26:59,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 133 [2022-01-18 02:26:59,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:27:00,746 INFO L225 Difference]: With dead ends: 147069 [2022-01-18 02:27:00,747 INFO L226 Difference]: Without dead ends: 147069 [2022-01-18 02:27:00,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-01-18 02:27:00,747 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 476 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:27:00,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1384 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:27:00,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147069 states. [2022-01-18 02:27:02,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147069 to 32311. [2022-01-18 02:27:02,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32311 states, 32310 states have (on average 3.8867533271432992) internal successors, (125581), 32310 states have internal predecessors, (125581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:02,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32311 states to 32311 states and 125581 transitions. [2022-01-18 02:27:02,887 INFO L78 Accepts]: Start accepts. Automaton has 32311 states and 125581 transitions. Word has length 133 [2022-01-18 02:27:02,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:27:02,887 INFO L470 AbstractCegarLoop]: Abstraction has 32311 states and 125581 transitions. [2022-01-18 02:27:02,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:02,887 INFO L276 IsEmpty]: Start isEmpty. Operand 32311 states and 125581 transitions. [2022-01-18 02:27:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:27:02,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:27:02,959 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:27:02,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 02:27:03,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-18 02:27:03,159 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:27:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:27:03,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1614730339, now seen corresponding path program 10 times [2022-01-18 02:27:03,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:27:03,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989641894] [2022-01-18 02:27:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:27:03,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:27:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:03,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:27:03,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989641894] [2022-01-18 02:27:03,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989641894] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:03,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065473709] [2022-01-18 02:27:03,258 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 02:27:03,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:03,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:27:03,260 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:27:03,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 02:27:03,358 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 02:27:03,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:27:03,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:27:03,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:27:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:03,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:27:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:04,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065473709] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:04,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:27:04,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 23 [2022-01-18 02:27:04,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902417294] [2022-01-18 02:27:04,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:27:04,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 02:27:04,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:27:04,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 02:27:04,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2022-01-18 02:27:04,015 INFO L87 Difference]: Start difference. First operand 32311 states and 125581 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:04,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:27:04,939 INFO L93 Difference]: Finished difference Result 51034 states and 195310 transitions. [2022-01-18 02:27:04,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 02:27:04,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:27:04,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:27:05,134 INFO L225 Difference]: With dead ends: 51034 [2022-01-18 02:27:05,134 INFO L226 Difference]: Without dead ends: 51034 [2022-01-18 02:27:05,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 02:27:05,136 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 885 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:27:05,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [885 Valid, 985 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:27:05,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51034 states. [2022-01-18 02:27:05,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51034 to 32293. [2022-01-18 02:27:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32293 states, 32292 states have (on average 3.8865043973739626) internal successors, (125503), 32292 states have internal predecessors, (125503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:06,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32293 states to 32293 states and 125503 transitions. [2022-01-18 02:27:06,468 INFO L78 Accepts]: Start accepts. Automaton has 32293 states and 125503 transitions. Word has length 133 [2022-01-18 02:27:06,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:27:06,468 INFO L470 AbstractCegarLoop]: Abstraction has 32293 states and 125503 transitions. [2022-01-18 02:27:06,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 32293 states and 125503 transitions. [2022-01-18 02:27:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:27:06,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:27:06,550 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:27:06,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 02:27:06,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-01-18 02:27:06,751 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:27:06,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:27:06,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1715781891, now seen corresponding path program 11 times [2022-01-18 02:27:06,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:27:06,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224089509] [2022-01-18 02:27:06,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:27:06,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:27:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:06,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:06,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:27:06,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224089509] [2022-01-18 02:27:06,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224089509] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:06,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636382086] [2022-01-18 02:27:06,862 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 02:27:06,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:06,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:27:06,864 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:27:06,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 02:27:06,947 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 02:27:06,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:27:06,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 02:27:06,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:27:07,178 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:27:07,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 02:27:07,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636382086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:27:07,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 02:27:07,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-01-18 02:27:07,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230188309] [2022-01-18 02:27:07,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:27:07,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:27:07,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:27:07,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:27:07,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-01-18 02:27:07,180 INFO L87 Difference]: Start difference. First operand 32293 states and 125503 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:08,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:27:08,678 INFO L93 Difference]: Finished difference Result 124293 states and 475578 transitions. [2022-01-18 02:27:08,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 02:27:08,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 133 [2022-01-18 02:27:08,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:27:09,283 INFO L225 Difference]: With dead ends: 124293 [2022-01-18 02:27:09,283 INFO L226 Difference]: Without dead ends: 124293 [2022-01-18 02:27:09,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-01-18 02:27:09,283 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 397 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:27:09,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1311 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:27:09,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124293 states. [2022-01-18 02:27:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124293 to 32297. [2022-01-18 02:27:11,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32297 states, 32296 states have (on average 3.8868590537527865) internal successors, (125530), 32296 states have internal predecessors, (125530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32297 states to 32297 states and 125530 transitions. [2022-01-18 02:27:11,164 INFO L78 Accepts]: Start accepts. Automaton has 32297 states and 125530 transitions. Word has length 133 [2022-01-18 02:27:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:27:11,165 INFO L470 AbstractCegarLoop]: Abstraction has 32297 states and 125530 transitions. [2022-01-18 02:27:11,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:11,165 INFO L276 IsEmpty]: Start isEmpty. Operand 32297 states and 125530 transitions. [2022-01-18 02:27:11,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:27:11,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:27:11,238 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:27:11,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-18 02:27:11,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-18 02:27:11,439 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:27:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:27:11,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1964000743, now seen corresponding path program 12 times [2022-01-18 02:27:11,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:27:11,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533567843] [2022-01-18 02:27:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:27:11,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:27:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:11,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:27:11,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533567843] [2022-01-18 02:27:11,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533567843] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:11,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115963143] [2022-01-18 02:27:11,551 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 02:27:11,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:27:11,552 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:27:11,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 02:27:11,665 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 02:27:11,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:27:11,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:27:11,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:27:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:11,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:27:12,265 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:12,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115963143] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:12,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:27:12,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 24 [2022-01-18 02:27:12,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778623958] [2022-01-18 02:27:12,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:27:12,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 02:27:12,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:27:12,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 02:27:12,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2022-01-18 02:27:12,267 INFO L87 Difference]: Start difference. First operand 32297 states and 125530 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:27:13,338 INFO L93 Difference]: Finished difference Result 61240 states and 235632 transitions. [2022-01-18 02:27:13,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 02:27:13,338 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:27:13,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:27:13,590 INFO L225 Difference]: With dead ends: 61240 [2022-01-18 02:27:13,590 INFO L226 Difference]: Without dead ends: 61240 [2022-01-18 02:27:13,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 02:27:13,591 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 798 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:27:13,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [798 Valid, 927 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:27:13,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61240 states. [2022-01-18 02:27:14,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61240 to 32114. [2022-01-18 02:27:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32114 states, 32113 states have (on average 3.883473982499299) internal successors, (124710), 32113 states have internal predecessors, (124710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:15,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32114 states to 32114 states and 124710 transitions. [2022-01-18 02:27:15,007 INFO L78 Accepts]: Start accepts. Automaton has 32114 states and 124710 transitions. Word has length 133 [2022-01-18 02:27:15,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:27:15,007 INFO L470 AbstractCegarLoop]: Abstraction has 32114 states and 124710 transitions. [2022-01-18 02:27:15,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:15,007 INFO L276 IsEmpty]: Start isEmpty. Operand 32114 states and 124710 transitions. [2022-01-18 02:27:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:27:15,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:27:15,087 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:27:15,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 02:27:15,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:15,288 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:27:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:27:15,288 INFO L85 PathProgramCache]: Analyzing trace with hash -712119571, now seen corresponding path program 13 times [2022-01-18 02:27:15,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:27:15,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622614634] [2022-01-18 02:27:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:27:15,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:27:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:15,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:27:15,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622614634] [2022-01-18 02:27:15,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622614634] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:15,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441550564] [2022-01-18 02:27:15,390 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 02:27:15,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:15,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:27:15,392 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:27:15,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 02:27:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:15,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 02:27:15,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:27:15,784 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:15,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:27:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:16,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441550564] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:16,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:27:16,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 24 [2022-01-18 02:27:16,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672600337] [2022-01-18 02:27:16,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:27:16,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 02:27:16,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:27:16,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 02:27:16,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2022-01-18 02:27:16,125 INFO L87 Difference]: Start difference. First operand 32114 states and 124710 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:27:16,556 INFO L93 Difference]: Finished difference Result 45812 states and 175961 transitions. [2022-01-18 02:27:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 02:27:16,557 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:27:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:27:16,709 INFO L225 Difference]: With dead ends: 45812 [2022-01-18 02:27:16,709 INFO L226 Difference]: Without dead ends: 45812 [2022-01-18 02:27:16,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 02:27:16,710 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 705 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:27:16,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 809 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:27:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45812 states. [2022-01-18 02:27:17,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45812 to 31856. [2022-01-18 02:27:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31856 states, 31855 states have (on average 3.8778527703657195) internal successors, (123529), 31855 states have internal predecessors, (123529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31856 states to 31856 states and 123529 transitions. [2022-01-18 02:27:17,880 INFO L78 Accepts]: Start accepts. Automaton has 31856 states and 123529 transitions. Word has length 133 [2022-01-18 02:27:17,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:27:17,880 INFO L470 AbstractCegarLoop]: Abstraction has 31856 states and 123529 transitions. [2022-01-18 02:27:17,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:17,880 INFO L276 IsEmpty]: Start isEmpty. Operand 31856 states and 123529 transitions. [2022-01-18 02:27:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-01-18 02:27:17,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:27:17,951 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:27:17,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 02:27:18,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:18,152 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:27:18,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:27:18,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1914209732, now seen corresponding path program 2 times [2022-01-18 02:27:18,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:27:18,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294421916] [2022-01-18 02:27:18,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:27:18,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:27:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:18,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:27:18,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294421916] [2022-01-18 02:27:18,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294421916] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:18,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532964878] [2022-01-18 02:27:18,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:27:18,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:18,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:27:18,235 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:27:18,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 02:27:18,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:27:18,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:27:18,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 02:27:18,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:27:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:18,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:27:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:18,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532964878] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:18,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:27:18,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-01-18 02:27:18,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833027875] [2022-01-18 02:27:18,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:27:18,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 02:27:18,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:27:18,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 02:27:18,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-01-18 02:27:18,917 INFO L87 Difference]: Start difference. First operand 31856 states and 123529 transitions. Second operand has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:27:19,234 INFO L93 Difference]: Finished difference Result 33648 states and 130445 transitions. [2022-01-18 02:27:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 02:27:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-01-18 02:27:19,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:27:19,340 INFO L225 Difference]: With dead ends: 33648 [2022-01-18 02:27:19,340 INFO L226 Difference]: Without dead ends: 33648 [2022-01-18 02:27:19,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2022-01-18 02:27:19,341 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 414 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:27:19,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 496 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:27:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33648 states. [2022-01-18 02:27:20,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33648 to 33648. [2022-01-18 02:27:20,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33648 states, 33647 states have (on average 3.876868665854311) internal successors, (130445), 33647 states have internal predecessors, (130445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33648 states to 33648 states and 130445 transitions. [2022-01-18 02:27:20,416 INFO L78 Accepts]: Start accepts. Automaton has 33648 states and 130445 transitions. Word has length 136 [2022-01-18 02:27:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:27:20,416 INFO L470 AbstractCegarLoop]: Abstraction has 33648 states and 130445 transitions. [2022-01-18 02:27:20,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 33648 states and 130445 transitions. [2022-01-18 02:27:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-18 02:27:20,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:27:20,496 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:27:20,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-18 02:27:20,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:20,700 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:27:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:27:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash -59731478, now seen corresponding path program 1 times [2022-01-18 02:27:20,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:27:20,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367116006] [2022-01-18 02:27:20,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:27:20,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:27:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-18 02:27:20,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:27:20,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367116006] [2022-01-18 02:27:20,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367116006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:27:20,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:27:20,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 02:27:20,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086211754] [2022-01-18 02:27:20,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:27:20,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 02:27:20,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:27:20,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 02:27:20,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 02:27:20,740 INFO L87 Difference]: Start difference. First operand 33648 states and 130445 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:21,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:27:21,405 INFO L93 Difference]: Finished difference Result 44400 states and 171941 transitions. [2022-01-18 02:27:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:27:21,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 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 146 [2022-01-18 02:27:21,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:27:21,551 INFO L225 Difference]: With dead ends: 44400 [2022-01-18 02:27:21,551 INFO L226 Difference]: Without dead ends: 44400 [2022-01-18 02:27:21,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:27:21,552 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 160 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:27:21,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 527 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:27:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44400 states. [2022-01-18 02:27:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44400 to 37232. [2022-01-18 02:27:22,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37232 states, 37231 states have (on average 3.875184657946335) internal successors, (144277), 37231 states have internal predecessors, (144277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37232 states to 37232 states and 144277 transitions. [2022-01-18 02:27:22,828 INFO L78 Accepts]: Start accepts. Automaton has 37232 states and 144277 transitions. Word has length 146 [2022-01-18 02:27:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:27:22,829 INFO L470 AbstractCegarLoop]: Abstraction has 37232 states and 144277 transitions. [2022-01-18 02:27:22,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:27:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 37232 states and 144277 transitions. [2022-01-18 02:27:22,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-18 02:27:22,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:27:22,921 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:27:22,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 02:27:22,922 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:27:22,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:27:22,922 INFO L85 PathProgramCache]: Analyzing trace with hash -678018503, now seen corresponding path program 1 times [2022-01-18 02:27:22,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:27:22,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651420998] [2022-01-18 02:27:22,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:27:22,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:27:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:25,520 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:25,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:27:25,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651420998] [2022-01-18 02:27:25,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651420998] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:27:25,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175558987] [2022-01-18 02:27:25,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:27:25,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:27:25,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:27:25,522 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:27:25,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-18 02:27:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:27:25,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 66 conjunts are in the unsatisfiable core [2022-01-18 02:27:25,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:27:25,719 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 02:27:25,979 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 02:27:25,979 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 02:27:27,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:27:27,304 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-01-18 02:27:27,894 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-01-18 02:27:28,274 INFO L353 Elim1Store]: treesize reduction 49, result has 40.2 percent of original size [2022-01-18 02:27:28,275 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 55 [2022-01-18 02:27:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:29,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:27:33,626 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-01-18 02:27:33,626 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 471 treesize of output 422 [2022-01-18 02:27:33,638 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:27:33,639 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 369 treesize of output 343 [2022-01-18 02:27:33,652 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:27:33,652 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 343 treesize of output 330 [2022-01-18 02:27:33,661 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:27:33,662 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 330 treesize of output 304 [2022-01-18 02:27:33,671 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:27:33,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 304 treesize of output 291 [2022-01-18 02:27:33,683 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:27:33,683 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 291 treesize of output 265 [2022-01-18 02:27:33,697 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:27:33,697 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 265 treesize of output 213 [2022-01-18 02:27:36,572 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 02:27:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:27:36,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175558987] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:27:36,645 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:27:36,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 106 [2022-01-18 02:27:36,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063353585] [2022-01-18 02:27:36,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:27:36,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-01-18 02:27:36,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:27:36,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-01-18 02:27:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=10544, Unknown=84, NotChecked=0, Total=11130 [2022-01-18 02:27:36,649 INFO L87 Difference]: Start difference. First operand 37232 states and 144277 transitions. Second operand has 106 states, 106 states have (on average 3.7735849056603774) internal successors, (400), 106 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:29:01,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:29:01,519 INFO L93 Difference]: Finished difference Result 230047 states and 878402 transitions. [2022-01-18 02:29:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 263 states. [2022-01-18 02:29:01,520 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 3.7735849056603774) internal successors, (400), 106 states have internal predecessors, (400), 0 states have call successors, (0), 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 149 [2022-01-18 02:29:01,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:29:03,101 INFO L225 Difference]: With dead ends: 230047 [2022-01-18 02:29:03,102 INFO L226 Difference]: Without dead ends: 229747 [2022-01-18 02:29:03,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 361 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39340 ImplicationChecksByTransitivity, 75.6s TimeCoverageRelationStatistics Valid=24186, Invalid=107136, Unknown=84, NotChecked=0, Total=131406 [2022-01-18 02:29:03,113 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 21711 mSDsluCounter, 30500 mSDsCounter, 0 mSdLazyCounter, 17064 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21711 SdHoareTripleChecker+Valid, 29552 SdHoareTripleChecker+Invalid, 21862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 17064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4201 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-01-18 02:29:03,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21711 Valid, 29552 Invalid, 21862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [597 Valid, 17064 Invalid, 0 Unknown, 4201 Unchecked, 10.4s Time] [2022-01-18 02:29:03,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229747 states. [2022-01-18 02:29:06,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229747 to 39974. [2022-01-18 02:29:06,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39974 states, 39973 states have (on average 3.835063667975884) internal successors, (153299), 39973 states have internal predecessors, (153299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:29:06,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39974 states to 39974 states and 153299 transitions. [2022-01-18 02:29:06,553 INFO L78 Accepts]: Start accepts. Automaton has 39974 states and 153299 transitions. Word has length 149 [2022-01-18 02:29:06,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:29:06,554 INFO L470 AbstractCegarLoop]: Abstraction has 39974 states and 153299 transitions. [2022-01-18 02:29:06,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 3.7735849056603774) internal successors, (400), 106 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:29:06,554 INFO L276 IsEmpty]: Start isEmpty. Operand 39974 states and 153299 transitions. [2022-01-18 02:29:06,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-18 02:29:06,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:29:06,639 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:29:06,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-01-18 02:29:06,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:29:06,840 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:29:06,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:29:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash 526269236, now seen corresponding path program 1 times [2022-01-18 02:29:06,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:29:06,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940033439] [2022-01-18 02:29:06,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:29:06,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:29:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:29:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:29:07,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:29:07,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940033439] [2022-01-18 02:29:07,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940033439] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:29:07,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867102971] [2022-01-18 02:29:07,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:29:07,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:29:07,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:29:07,780 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:29:07,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-18 02:29:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:29:07,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 48 conjunts are in the unsatisfiable core [2022-01-18 02:29:07,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:29:08,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:29:08,587 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-01-18 02:29:08,823 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-01-18 02:29:08,823 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 23 [2022-01-18 02:29:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:29:09,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:29:10,586 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~sorted1~0 256))) (let ((.cse1 (= .cse4 0))) (and (or (forall ((v_ArrVal_734 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_734) c_~A~0.base))) (< (select .cse0 c_~A~0.offset) (select .cse0 (+ c_~A~0.offset 4))))) .cse1) (or (forall ((v_ArrVal_734 (Array Int Int))) (not (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_734) c_~A~0.base))) (< (select .cse2 c_~A~0.offset) (select .cse2 (+ c_~A~0.offset 4)))))) (let ((.cse3 (= (mod c_~sorted3~0 256) 0))) (and (or .cse3 (= .cse4 1)) (or (not .cse3) .cse1))))))) is different from false [2022-01-18 02:29:10,809 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= (mod c_~sorted3~0 256) 0)) (.cse0 (< |c_thread1Thread1of1ForFork1_#t~mem2| |c_thread1Thread1of1ForFork1_#t~mem3|))) (and (or (not .cse0) (and (forall ((v_ArrVal_734 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_734) c_~A~0.base))) (< (select .cse1 c_~A~0.offset) (select .cse1 (+ c_~A~0.offset 4))))) (not .cse2))) (or .cse2 (forall ((v_ArrVal_734 (Array Int Int))) (not (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_734) c_~A~0.base))) (< (select .cse3 c_~A~0.offset) (select .cse3 (+ c_~A~0.offset 4)))))) .cse0))) is different from false [2022-01-18 02:29:10,945 INFO L353 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2022-01-18 02:29:10,945 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 76 [2022-01-18 02:29:10,953 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-01-18 02:29:10,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 23 [2022-01-18 02:29:11,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 02:29:11,051 INFO L353 Elim1Store]: treesize reduction 81, result has 1.2 percent of original size [2022-01-18 02:29:11,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 1 [2022-01-18 02:29:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:29:11,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867102971] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:29:11,723 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:29:11,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 27, 25] total 66 [2022-01-18 02:29:11,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881633706] [2022-01-18 02:29:11,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:29:11,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-01-18 02:29:11,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:29:11,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-01-18 02:29:11,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=3725, Unknown=9, NotChecked=250, Total=4290 [2022-01-18 02:29:11,725 INFO L87 Difference]: Start difference. First operand 39974 states and 153299 transitions. Second operand has 66 states, 66 states have (on average 5.4393939393939394) internal successors, (359), 66 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:30:42,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:30:42,784 INFO L93 Difference]: Finished difference Result 879981 states and 3329293 transitions. [2022-01-18 02:30:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 720 states. [2022-01-18 02:30:42,784 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 5.4393939393939394) internal successors, (359), 66 states have internal predecessors, (359), 0 states have call successors, (0), 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 149 [2022-01-18 02:30:42,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:30:50,148 INFO L225 Difference]: With dead ends: 879981 [2022-01-18 02:30:50,149 INFO L226 Difference]: Without dead ends: 878031 [2022-01-18 02:30:50,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1146 GetRequests, 265 SyntacticMatches, 125 SemanticMatches, 756 ConstructedPredicates, 2 IntricatePredicates, 30 DeprecatedPredicates, 311564 ImplicationChecksByTransitivity, 65.5s TimeCoverageRelationStatistics Valid=46369, Invalid=524410, Unknown=9, NotChecked=3018, Total=573806 [2022-01-18 02:30:50,185 INFO L933 BasicCegarLoop]: 1153 mSDtfsCounter, 14689 mSDsluCounter, 48428 mSDsCounter, 0 mSdLazyCounter, 22156 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14689 SdHoareTripleChecker+Valid, 45463 SdHoareTripleChecker+Invalid, 36197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 22156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13420 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-01-18 02:30:50,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14689 Valid, 45463 Invalid, 36197 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [621 Valid, 22156 Invalid, 0 Unknown, 13420 Unchecked, 10.3s Time] [2022-01-18 02:30:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878031 states. [2022-01-18 02:31:09,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878031 to 64285. [2022-01-18 02:31:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64285 states, 64284 states have (on average 3.878896770580549) internal successors, (249351), 64284 states have internal predecessors, (249351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:31:11,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64285 states to 64285 states and 249351 transitions. [2022-01-18 02:31:11,333 INFO L78 Accepts]: Start accepts. Automaton has 64285 states and 249351 transitions. Word has length 149 [2022-01-18 02:31:11,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:31:11,334 INFO L470 AbstractCegarLoop]: Abstraction has 64285 states and 249351 transitions. [2022-01-18 02:31:11,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 5.4393939393939394) internal successors, (359), 66 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:31:11,335 INFO L276 IsEmpty]: Start isEmpty. Operand 64285 states and 249351 transitions. [2022-01-18 02:31:11,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-18 02:31:11,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:31:11,532 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:31:11,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-18 02:31:11,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:31:11,735 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:31:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:31:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash 914878770, now seen corresponding path program 2 times [2022-01-18 02:31:11,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:31:11,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006097413] [2022-01-18 02:31:11,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:31:11,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:31:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:31:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:31:13,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:31:13,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006097413] [2022-01-18 02:31:13,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006097413] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:31:13,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512800552] [2022-01-18 02:31:13,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:31:13,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:31:13,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:31:13,043 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:31:13,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-18 02:31:13,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:31:13,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:31:13,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 54 conjunts are in the unsatisfiable core [2022-01-18 02:31:13,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:31:14,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:31:14,322 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-01-18 02:31:15,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:31:15,247 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2022-01-18 02:31:15,455 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 02:31:15,456 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 23 [2022-01-18 02:31:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:31:15,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:31:16,540 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (mod c_~sorted1~0 256))) (let ((.cse0 (= .cse2 0))) (and (or .cse0 (forall ((v_ArrVal_772 (Array Int Int))) (< |c_thread2Thread1of1ForFork2_#t~mem6| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4 (* c_thread2Thread1of1ForFork2_~i~1 4)))))) (or (forall ((v_ArrVal_772 (Array Int Int))) (not (< |c_thread2Thread1of1ForFork2_#t~mem6| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4 (* c_thread2Thread1of1ForFork2_~i~1 4)))))) (let ((.cse1 (= (mod c_~sorted3~0 256) 0))) (and (or .cse1 (= .cse2 1)) (or (not .cse1) .cse0))))))) is different from false [2022-01-18 02:31:16,625 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~sorted1~0 256))) (let ((.cse1 (= .cse4 0))) (and (or (forall ((v_ArrVal_772 (Array Int Int))) (let ((.cse0 (* c_thread2Thread1of1ForFork2_~i~1 4))) (< (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset .cse0)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4 .cse0))))) .cse1) (or (forall ((v_ArrVal_772 (Array Int Int))) (not (let ((.cse2 (* c_thread2Thread1of1ForFork2_~i~1 4))) (< (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset .cse2)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4 .cse2)))))) (let ((.cse3 (= (mod c_~sorted3~0 256) 0))) (and (or .cse3 (= .cse4 1)) (or (not .cse3) .cse1))))))) is different from false [2022-01-18 02:31:17,184 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= (mod c_~sorted3~0 256) 0)) (.cse2 (< |c_thread1Thread1of1ForFork1_#t~mem2| |c_thread1Thread1of1ForFork1_#t~mem3|))) (and (or (and (forall ((v_ArrVal_771 (Array Int Int)) (v_ArrVal_772 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_771))) (< (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4))))) (not .cse1)) (not .cse2)) (or .cse1 (forall ((v_ArrVal_771 (Array Int Int)) (v_ArrVal_772 (Array Int Int))) (not (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_771))) (< (select (select .cse3 c_~A~0.base) c_~A~0.offset) (select (select (store .cse3 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4)))))) .cse2))) is different from false [2022-01-18 02:31:17,310 INFO L353 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2022-01-18 02:31:17,310 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 183 treesize of output 180 [2022-01-18 02:31:17,317 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-01-18 02:31:17,317 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 118 [2022-01-18 02:31:17,322 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 102 [2022-01-18 02:31:17,481 INFO L353 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2022-01-18 02:31:17,481 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 183 treesize of output 180 [2022-01-18 02:31:17,490 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-01-18 02:31:17,491 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 117 [2022-01-18 02:31:17,513 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-01-18 02:31:18,479 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 02:31:18,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512800552] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:31:18,479 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:31:18,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 29, 27] total 72 [2022-01-18 02:31:18,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540666337] [2022-01-18 02:31:18,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:31:18,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-01-18 02:31:18,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:31:18,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-01-18 02:31:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=4323, Unknown=27, NotChecked=408, Total=5112 [2022-01-18 02:31:18,481 INFO L87 Difference]: Start difference. First operand 64285 states and 249351 transitions. Second operand has 72 states, 72 states have (on average 4.986111111111111) internal successors, (359), 72 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:31:41,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:31:41,521 INFO L93 Difference]: Finished difference Result 431443 states and 1648272 transitions. [2022-01-18 02:31:41,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-01-18 02:31:41,521 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 4.986111111111111) internal successors, (359), 72 states have internal predecessors, (359), 0 states have call successors, (0), 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 149 [2022-01-18 02:31:41,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:31:44,816 INFO L225 Difference]: With dead ends: 431443 [2022-01-18 02:31:44,816 INFO L226 Difference]: Without dead ends: 430993 [2022-01-18 02:31:44,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 263 SyntacticMatches, 26 SemanticMatches, 200 ConstructedPredicates, 3 IntricatePredicates, 5 DeprecatedPredicates, 14664 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=4661, Invalid=34720, Unknown=33, NotChecked=1188, Total=40602 [2022-01-18 02:31:44,818 INFO L933 BasicCegarLoop]: 1005 mSDtfsCounter, 7434 mSDsluCounter, 33529 mSDsCounter, 0 mSdLazyCounter, 12132 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7434 SdHoareTripleChecker+Valid, 32199 SdHoareTripleChecker+Invalid, 24676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 12132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12311 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-18 02:31:44,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7434 Valid, 32199 Invalid, 24676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [233 Valid, 12132 Invalid, 0 Unknown, 12311 Unchecked, 5.7s Time] [2022-01-18 02:31:45,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430993 states. [2022-01-18 02:31:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430993 to 68652. [2022-01-18 02:31:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68652 states, 68651 states have (on average 3.880453307307978) internal successors, (266397), 68651 states have internal predecessors, (266397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:31:53,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68652 states to 68652 states and 266397 transitions. [2022-01-18 02:31:53,081 INFO L78 Accepts]: Start accepts. Automaton has 68652 states and 266397 transitions. Word has length 149 [2022-01-18 02:31:53,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:31:53,081 INFO L470 AbstractCegarLoop]: Abstraction has 68652 states and 266397 transitions. [2022-01-18 02:31:53,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 4.986111111111111) internal successors, (359), 72 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:31:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 68652 states and 266397 transitions. [2022-01-18 02:31:53,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-18 02:31:53,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:31:53,255 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:31:53,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-01-18 02:31:53,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:31:53,455 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:31:53,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:31:53,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1579747311, now seen corresponding path program 2 times [2022-01-18 02:31:53,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:31:53,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971330830] [2022-01-18 02:31:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:31:53,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:31:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:31:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:31:56,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:31:56,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971330830] [2022-01-18 02:31:56,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971330830] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:31:56,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137320736] [2022-01-18 02:31:56,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:31:56,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:31:56,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:31:56,096 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:31:56,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-01-18 02:31:56,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:31:56,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:31:56,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 70 conjunts are in the unsatisfiable core [2022-01-18 02:31:56,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:31:56,329 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 02:31:56,361 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 02:31:56,361 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 02:31:56,559 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-01-18 02:31:56,560 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 02:31:57,847 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-01-18 02:31:58,159 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-01-18 02:31:58,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:31:58,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:31:58,888 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 02:31:58,888 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 61 [2022-01-18 02:32:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:00,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:32:03,447 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_thread3Thread1of1ForFork0_~i~2_47 Int)) (or (< 0 v_thread3Thread1of1ForFork0_~i~2_47) (< (+ 2 v_thread3Thread1of1ForFork0_~i~2_47) c_~N~0) (let ((.cse4 (< |c_thread1Thread1of1ForFork1_#t~mem2| |c_thread1Thread1of1ForFork1_#t~mem3|)) (.cse1 (forall ((v_ArrVal_812 (Array Int Int)) (v_ArrVal_811 (Array Int Int))) (not (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_811) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_812) c_~A~0.base)) (.cse6 (* 4 v_thread3Thread1of1ForFork0_~i~2_47))) (< (select .cse5 (+ .cse6 c_~A~0.offset)) (select .cse5 (+ .cse6 c_~A~0.offset 4))))))) (.cse0 (= (mod c_~sorted2~0 256) 0))) (and (or (and (or (not .cse0) .cse1) (forall ((v_ArrVal_812 (Array Int Int)) (v_ArrVal_811 (Array Int Int))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_811) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_812) c_~A~0.base)) (.cse3 (* 4 v_thread3Thread1of1ForFork0_~i~2_47))) (< (select .cse2 (+ .cse3 c_~A~0.offset)) (select .cse2 (+ .cse3 c_~A~0.offset 4)))))) (not .cse4)) (or .cse4 .cse1 .cse0))))) is different from false [2022-01-18 02:32:03,740 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-01-18 02:32:03,740 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 691 treesize of output 608 [2022-01-18 02:32:03,753 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:32:03,754 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 555 treesize of output 529 [2022-01-18 02:32:03,763 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:32:03,763 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 529 treesize of output 477 [2022-01-18 02:32:03,773 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:32:03,774 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 451 [2022-01-18 02:32:03,785 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:32:03,786 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 451 treesize of output 399 [2022-01-18 02:32:03,796 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:32:03,796 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 399 treesize of output 347 [2022-01-18 02:32:03,828 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:32:03,829 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 321 [2022-01-18 02:32:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:32:06,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137320736] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:32:06,453 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:32:06,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 103 [2022-01-18 02:32:06,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270001324] [2022-01-18 02:32:06,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:32:06,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-01-18 02:32:06,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:32:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-01-18 02:32:06,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=9775, Unknown=30, NotChecked=200, Total=10506 [2022-01-18 02:32:06,455 INFO L87 Difference]: Start difference. First operand 68652 states and 266397 transitions. Second operand has 103 states, 103 states have (on average 3.854368932038835) internal successors, (397), 103 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:36:01,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:36:01,771 INFO L93 Difference]: Finished difference Result 532947 states and 2050273 transitions. [2022-01-18 02:36:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 830 states. [2022-01-18 02:36:01,771 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 3.854368932038835) internal successors, (397), 103 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2022-01-18 02:36:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:36:05,573 INFO L225 Difference]: With dead ends: 532947 [2022-01-18 02:36:05,573 INFO L226 Difference]: Without dead ends: 532875 [2022-01-18 02:36:05,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1269 GetRequests, 323 SyntacticMatches, 29 SemanticMatches, 917 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 352588 ImplicationChecksByTransitivity, 205.8s TimeCoverageRelationStatistics Valid=104387, Invalid=737393, Unknown=30, NotChecked=1832, Total=843642 [2022-01-18 02:36:05,621 INFO L933 BasicCegarLoop]: 1175 mSDtfsCounter, 16798 mSDsluCounter, 43108 mSDsCounter, 0 mSdLazyCounter, 28519 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16798 SdHoareTripleChecker+Valid, 42645 SdHoareTripleChecker+Invalid, 37889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 28519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8837 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-01-18 02:36:05,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16798 Valid, 42645 Invalid, 37889 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [533 Valid, 28519 Invalid, 0 Unknown, 8837 Unchecked, 16.9s Time] [2022-01-18 02:36:06,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532875 states. [2022-01-18 02:36:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532875 to 71506. [2022-01-18 02:36:14,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71506 states, 71505 states have (on average 3.8822040416754073) internal successors, (277597), 71505 states have internal predecessors, (277597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:36:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71506 states to 71506 states and 277597 transitions. [2022-01-18 02:36:14,667 INFO L78 Accepts]: Start accepts. Automaton has 71506 states and 277597 transitions. Word has length 149 [2022-01-18 02:36:14,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:36:14,668 INFO L470 AbstractCegarLoop]: Abstraction has 71506 states and 277597 transitions. [2022-01-18 02:36:14,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 3.854368932038835) internal successors, (397), 103 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:36:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 71506 states and 277597 transitions. [2022-01-18 02:36:14,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-18 02:36:14,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:36:14,873 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:36:14,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-01-18 02:36:15,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-01-18 02:36:15,074 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:36:15,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:36:15,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1721142789, now seen corresponding path program 3 times [2022-01-18 02:36:15,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:36:15,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227104257] [2022-01-18 02:36:15,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:36:15,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:36:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:36:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:36:18,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:36:18,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227104257] [2022-01-18 02:36:18,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227104257] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:36:18,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276495920] [2022-01-18 02:36:18,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 02:36:18,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:36:18,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:36:18,247 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:36:18,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-01-18 02:36:18,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 02:36:18,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:36:18,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 62 conjunts are in the unsatisfiable core [2022-01-18 02:36:18,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:36:18,507 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 02:36:18,619 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 02:36:18,619 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 02:36:19,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:36:19,773 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-01-18 02:36:20,102 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-01-18 02:36:21,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:36:21,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:36:21,012 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 02:36:21,012 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 57 [2022-01-18 02:36:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:36:22,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:36:25,094 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int)) (or (let ((.cse1 (= (mod c_~sorted2~0 256) 0)) (.cse0 (forall ((v_ArrVal_850 (Array Int Int)) (v_ArrVal_851 (Array Int Int))) (not (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_851) c_~A~0.base)) (.cse5 (* ~M~0 4))) (< (select .cse4 (+ c_~A~0.offset .cse5)) (select .cse4 (+ c_~A~0.offset .cse5 4)))))))) (and (or |c_thread1Thread1of1ForFork1_#t~short4| .cse0 .cse1) (or (not |c_thread1Thread1of1ForFork1_#t~short4|) (and (or (not .cse1) .cse0) (forall ((v_ArrVal_850 (Array Int Int)) (v_ArrVal_851 (Array Int Int))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_851) c_~A~0.base)) (.cse3 (* ~M~0 4))) (< (select .cse2 (+ c_~A~0.offset .cse3)) (select .cse2 (+ c_~A~0.offset .cse3 4))))))))) (< 0 ~M~0) (< (+ 2 ~M~0) c_~N~0))) is different from false [2022-01-18 02:36:25,266 WARN L838 $PredicateComparison]: unable to prove that (forall ((~M~0 Int)) (or (< 0 ~M~0) (< (+ 2 ~M~0) c_~N~0) (let ((.cse2 (= (mod c_~sorted2~0 256) 0)) (.cse1 (forall ((v_ArrVal_850 (Array Int Int)) (v_ArrVal_851 (Array Int Int))) (not (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_851) c_~A~0.base)) (.cse6 (* ~M~0 4))) (< (select .cse5 (+ c_~A~0.offset .cse6)) (select .cse5 (+ c_~A~0.offset .cse6 4))))))) (.cse0 (< |c_thread1Thread1of1ForFork1_#t~mem2| |c_thread1Thread1of1ForFork1_#t~mem3|))) (and (or .cse0 .cse1 .cse2) (or (and (or (not .cse2) .cse1) (forall ((v_ArrVal_850 (Array Int Int)) (v_ArrVal_851 (Array Int Int))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_851) c_~A~0.base)) (.cse4 (* ~M~0 4))) (< (select .cse3 (+ c_~A~0.offset .cse4)) (select .cse3 (+ c_~A~0.offset .cse4 4)))))) (not .cse0)))))) is different from false [2022-01-18 02:36:25,547 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-01-18 02:36:25,548 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 467 treesize of output 418 [2022-01-18 02:36:25,558 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:36:25,558 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 365 treesize of output 339 [2022-01-18 02:36:25,567 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:36:25,568 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 339 treesize of output 326 [2022-01-18 02:36:25,577 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:36:25,577 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 326 treesize of output 300 [2022-01-18 02:36:25,586 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:36:25,586 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 300 treesize of output 248 [2022-01-18 02:36:25,594 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:36:25,595 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 248 treesize of output 222 [2022-01-18 02:36:25,604 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 02:36:25,604 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 222 treesize of output 209 [2022-01-18 02:36:27,116 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 02:36:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 02:36:27,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276495920] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 02:36:27,183 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 02:36:27,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 33, 33] total 96 [2022-01-18 02:36:27,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028552117] [2022-01-18 02:36:27,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 02:36:27,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-01-18 02:36:27,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:36:27,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-01-18 02:36:27,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=8238, Unknown=38, NotChecked=370, Total=9120 [2022-01-18 02:36:27,185 INFO L87 Difference]: Start difference. First operand 71506 states and 277597 transitions. Second operand has 96 states, 96 states have (on average 4.020833333333333) internal successors, (386), 96 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 02:37:34,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-01-18 02:37:34,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 248 SyntacticMatches, 18 SemanticMatches, 349 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 40455 ImplicationChecksByTransitivity, 61.8s TimeCoverageRelationStatistics Valid=20186, Invalid=101236, Unknown=38, NotChecked=1390, Total=122850 [2022-01-18 02:37:34,864 INFO L933 BasicCegarLoop]: 697 mSDtfsCounter, 12280 mSDsluCounter, 23655 mSDsCounter, 0 mSdLazyCounter, 15928 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12280 SdHoareTripleChecker+Valid, 23421 SdHoareTripleChecker+Invalid, 22011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 15928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5695 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-01-18 02:37:34,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12280 Valid, 23421 Invalid, 22011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [388 Valid, 15928 Invalid, 0 Unknown, 5695 Unchecked, 8.5s Time] [2022-01-18 02:37:34,865 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 02:37:34,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-01-18 02:37:34,903 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 02:37:34,903 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 02:37:35,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-01-18 02:37:35,066 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (71506states) and FLOYD_HOARE automaton (currently 260 states, 96 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 351 known predicates. [2022-01-18 02:37:35,068 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 02:37:35,068 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 02:37:35,068 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 02:37:35,071 INFO L732 BasicCegarLoop]: Path program histogram: [13, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:37:35,072 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 02:37:35,072 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 02:37:35,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 02:37:35 BasicIcfg [2022-01-18 02:37:35,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 02:37:35,076 INFO L158 Benchmark]: Toolchain (without parser) took 690634.29ms. Allocated memory was 371.2MB in the beginning and 15.8GB in the end (delta: 15.4GB). Free memory was 317.4MB in the beginning and 9.8GB in the end (delta: -9.5GB). Peak memory consumption was 5.9GB. Max. memory is 16.0GB. [2022-01-18 02:37:35,076 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 371.2MB. Free memory is still 334.0MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 02:37:35,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.07ms. Allocated memory is still 371.2MB. Free memory was 317.2MB in the beginning and 341.8MB in the end (delta: -24.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.0GB. [2022-01-18 02:37:35,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.83ms. Allocated memory is still 371.2MB. Free memory was 341.8MB in the beginning and 339.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 02:37:35,078 INFO L158 Benchmark]: Boogie Preprocessor took 25.00ms. Allocated memory is still 371.2MB. Free memory was 339.7MB in the beginning and 338.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 02:37:35,079 INFO L158 Benchmark]: RCFGBuilder took 491.64ms. Allocated memory is still 371.2MB. Free memory was 338.6MB in the beginning and 321.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-18 02:37:35,079 INFO L158 Benchmark]: TraceAbstraction took 689760.36ms. Allocated memory was 371.2MB in the beginning and 15.8GB in the end (delta: 15.4GB). Free memory was 320.8MB in the beginning and 9.8GB in the end (delta: -9.5GB). Peak memory consumption was 5.9GB. Max. memory is 16.0GB. [2022-01-18 02:37:35,079 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 371.2MB. Free memory is still 334.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 306.07ms. Allocated memory is still 371.2MB. Free memory was 317.2MB in the beginning and 341.8MB in the end (delta: -24.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.83ms. Allocated memory is still 371.2MB. Free memory was 341.8MB in the beginning and 339.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.00ms. Allocated memory is still 371.2MB. Free memory was 339.7MB in the beginning and 338.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 491.64ms. Allocated memory is still 371.2MB. Free memory was 338.6MB in the beginning and 321.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 689760.36ms. Allocated memory was 371.2MB in the beginning and 15.8GB in the end (delta: 15.4GB). Free memory was 320.8MB in the beginning and 9.8GB in the end (delta: -9.5GB). Peak memory consumption was 5.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (71506states) and FLOYD_HOARE automaton (currently 260 states, 96 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 351 known predicates. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (71506states) and FLOYD_HOARE automaton (currently 260 states, 96 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 351 known predicates. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (71506states) and FLOYD_HOARE automaton (currently 260 states, 96 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 351 known predicates. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (71506states) and FLOYD_HOARE automaton (currently 260 states, 96 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 351 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 224 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 689.6s, OverallIterations: 27, TraceHistogramMax: 2, PathProgramHistogramMax: 13, EmptinessCheckTime: 2.8s, AutomataDifference: 543.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86961 SdHoareTripleChecker+Valid, 54.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86961 mSDsluCounter, 196279 SdHoareTripleChecker+Invalid, 46.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 44464 IncrementalHoareTripleChecker+Unchecked, 197536 mSDsCounter, 2508 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100487 IncrementalHoareTripleChecker+Invalid, 147459 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2508 mSolverCounterUnsat, 10128 mSDtfsCounter, 100487 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7887 GetRequests, 4626 SyntacticMatches, 216 SemanticMatches, 3044 ConstructedPredicates, 8 IntricatePredicates, 35 DeprecatedPredicates, 761641 ImplicationChecksByTransitivity, 428.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71506occurred in iteration=26, InterpolantAutomatonStates: 2192, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 73.0s AutomataMinimizationTime, 26 MinimizatonAttempts, 2539264 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 60.7s InterpolantComputationTime, 6454 NumberOfCodeBlocks, 6409 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 8454 ConstructedInterpolants, 124 QuantifiedInterpolants, 82138 SizeOfPredicates, 314 NumberOfNonLiveVariables, 6362 ConjunctsInSsa, 438 ConjunctsInUnsatCore, 63 InterpolantComputations, 19 PerfectInterpolantSequences, 258/529 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown