/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 17:47:01,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 17:47:01,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 17:47:01,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 17:47:01,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 17:47:01,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 17:47:01,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 17:47:01,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 17:47:01,736 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 17:47:01,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 17:47:01,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 17:47:01,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 17:47:01,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 17:47:01,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 17:47:01,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 17:47:01,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 17:47:01,737 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 17:47:01,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 17:47:01,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 17:47:01,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 17:47:01,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:47:01,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 17:47:01,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 17:47:01,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 17:47:01,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 17:47:01,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 17:47:01,970 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 17:47:01,971 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 17:47:01,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2022-03-03 17:47:02,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7283a3a2/860fc274989042d997347d8566492122/FLAGb6f68e5a7 [2022-03-03 17:47:02,378 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 17:47:02,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2022-03-03 17:47:02,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7283a3a2/860fc274989042d997347d8566492122/FLAGb6f68e5a7 [2022-03-03 17:47:02,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7283a3a2/860fc274989042d997347d8566492122 [2022-03-03 17:47:02,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 17:47:02,405 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 17:47:02,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 17:47:02,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 17:47:02,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 17:47:02,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ee1628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02, skipping insertion in model container [2022-03-03 17:47:02,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 17:47:02,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 17:47:02,583 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-two-queue.wvr.c[2987,3000] [2022-03-03 17:47:02,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:47:02,595 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 17:47:02,615 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-two-queue.wvr.c[2987,3000] [2022-03-03 17:47:02,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:47:02,629 INFO L208 MainTranslator]: Completed translation [2022-03-03 17:47:02,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02 WrapperNode [2022-03-03 17:47:02,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 17:47:02,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 17:47:02,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 17:47:02,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 17:47:02,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,681 INFO L137 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 200 [2022-03-03 17:47:02,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 17:47:02,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 17:47:02,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 17:47:02,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 17:47:02,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 17:47:02,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 17:47:02,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 17:47:02,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 17:47:02,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (1/1) ... [2022-03-03 17:47:02,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:47:02,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:47:02,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 17:47:02,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 17:47:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 17:47:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 17:47:02,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 17:47:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 17:47:02,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 17:47:02,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 17:47:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 17:47:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 17:47:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 17:47:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 17:47:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-03 17:47:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 17:47:02,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 17:47:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 17:47:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 17:47:02,785 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 17:47:02,871 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 17:47:02,873 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 17:47:03,167 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 17:47:03,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 17:47:03,269 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-03 17:47:03,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:47:03 BoogieIcfgContainer [2022-03-03 17:47:03,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 17:47:03,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 17:47:03,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 17:47:03,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 17:47:03,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:47:02" (1/3) ... [2022-03-03 17:47:03,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a70daef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:47:03, skipping insertion in model container [2022-03-03 17:47:03,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:47:02" (2/3) ... [2022-03-03 17:47:03,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a70daef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:47:03, skipping insertion in model container [2022-03-03 17:47:03,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:47:03" (3/3) ... [2022-03-03 17:47:03,277 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2022-03-03 17:47:03,282 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 17:47:03,282 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 17:47:03,282 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 17:47:03,282 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 17:47:03,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:47:03,347 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-03 17:47:03,380 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 17:47:03,386 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 17:47:03,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 17:47:03,400 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 172 places, 178 transitions, 372 flow [2022-03-03 17:47:03,454 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-03 17:47:03,478 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:03,479 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] [2022-03-03 17:47:03,479 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:03,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1706445545, now seen corresponding path program 1 times [2022-03-03 17:47:03,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:03,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329259370] [2022-03-03 17:47:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:03,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:47:03,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:03,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329259370] [2022-03-03 17:47:03,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329259370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:47:03,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:47:03,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 17:47:03,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939357355] [2022-03-03 17:47:03,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:47:03,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 17:47:03,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:47:03,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 17:47:03,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 17:47:03,770 INFO L87 Difference]: Start difference. First operand has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 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 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:03,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:47:03,829 INFO L93 Difference]: Finished difference Result 531 states and 1181 transitions. [2022-03-03 17:47:03,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 17:47:03,831 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-03-03 17:47:03,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:47:03,849 INFO L225 Difference]: With dead ends: 531 [2022-03-03 17:47:03,849 INFO L226 Difference]: Without dead ends: 526 [2022-03-03 17:47:03,852 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 [2022-03-03 17:47:03,855 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:47:03,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:47:03,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-03-03 17:47:03,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2022-03-03 17:47:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 2.24) internal successors, (1176), 525 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:03,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1176 transitions. [2022-03-03 17:47:03,927 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1176 transitions. Word has length 127 [2022-03-03 17:47:03,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:47:03,928 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 1176 transitions. [2022-03-03 17:47:03,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:03,928 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1176 transitions. [2022-03-03 17:47:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-03 17:47:03,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:03,935 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] [2022-03-03 17:47:03,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 17:47:03,936 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:03,938 INFO L85 PathProgramCache]: Analyzing trace with hash -173927127, now seen corresponding path program 1 times [2022-03-03 17:47:03,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:03,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79411711] [2022-03-03 17:47:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:03,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:04,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:47:04,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:04,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79411711] [2022-03-03 17:47:04,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79411711] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:47:04,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:47:04,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:47:04,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790946114] [2022-03-03 17:47:04,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:47:04,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:47:04,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:47:04,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:47:04,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:47:04,268 INFO L87 Difference]: Start difference. First operand 526 states and 1176 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:04,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:47:04,405 INFO L93 Difference]: Finished difference Result 982 states and 2343 transitions. [2022-03-03 17:47:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:47:04,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-03-03 17:47:04,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:47:04,413 INFO L225 Difference]: With dead ends: 982 [2022-03-03 17:47:04,413 INFO L226 Difference]: Without dead ends: 931 [2022-03-03 17:47:04,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:47:04,414 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 179 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 480 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 [2022-03-03 17:47:04,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 480 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:47:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-03-03 17:47:04,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 581. [2022-03-03 17:47:04,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 2.253448275862069) internal successors, (1307), 580 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1307 transitions. [2022-03-03 17:47:04,434 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1307 transitions. Word has length 127 [2022-03-03 17:47:04,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:47:04,436 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 1307 transitions. [2022-03-03 17:47:04,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:04,436 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1307 transitions. [2022-03-03 17:47:04,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-03 17:47:04,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:04,441 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, 1, 1, 1, 1] [2022-03-03 17:47:04,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 17:47:04,441 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:04,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:04,441 INFO L85 PathProgramCache]: Analyzing trace with hash -2114885365, now seen corresponding path program 1 times [2022-03-03 17:47:04,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:04,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876436986] [2022-03-03 17:47:04,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:04,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:47:04,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:04,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876436986] [2022-03-03 17:47:04,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876436986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:47:04,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:47:04,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 17:47:04,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668718341] [2022-03-03 17:47:04,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:47:04,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 17:47:04,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:47:04,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 17:47:04,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-03 17:47:04,601 INFO L87 Difference]: Start difference. First operand 581 states and 1307 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 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) [2022-03-03 17:47:04,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:47:04,665 INFO L93 Difference]: Finished difference Result 931 states and 2193 transitions. [2022-03-03 17:47:04,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 17:47:04,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 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 [2022-03-03 17:47:04,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:47:04,670 INFO L225 Difference]: With dead ends: 931 [2022-03-03 17:47:04,670 INFO L226 Difference]: Without dead ends: 886 [2022-03-03 17:47:04,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-03 17:47:04,675 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 182 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:47:04,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 350 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:47:04,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-03-03 17:47:04,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 536. [2022-03-03 17:47:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.2411214953271026) internal successors, (1199), 535 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1199 transitions. [2022-03-03 17:47:04,689 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1199 transitions. Word has length 133 [2022-03-03 17:47:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:47:04,690 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1199 transitions. [2022-03-03 17:47:04,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 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) [2022-03-03 17:47:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1199 transitions. [2022-03-03 17:47:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-03 17:47:04,692 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:04,692 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, 1, 1, 1, 1] [2022-03-03 17:47:04,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 17:47:04,692 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:04,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:04,694 INFO L85 PathProgramCache]: Analyzing trace with hash 400951589, now seen corresponding path program 1 times [2022-03-03 17:47:04,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:04,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142933479] [2022-03-03 17:47:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:04,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:04,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:47:04,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:04,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142933479] [2022-03-03 17:47:04,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142933479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:47:04,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:47:04,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:47:04,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552244964] [2022-03-03 17:47:04,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:47:04,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:47:04,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:47:04,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:47:04,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:47:04,817 INFO L87 Difference]: Start difference. First operand 536 states and 1199 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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) [2022-03-03 17:47:04,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:47:04,877 INFO L93 Difference]: Finished difference Result 949 states and 2283 transitions. [2022-03-03 17:47:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:47:04,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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 [2022-03-03 17:47:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:47:04,882 INFO L225 Difference]: With dead ends: 949 [2022-03-03 17:47:04,882 INFO L226 Difference]: Without dead ends: 949 [2022-03-03 17:47:04,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:47:04,886 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 192 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:47:04,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 358 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:47:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-03-03 17:47:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 583. [2022-03-03 17:47:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 2.2783505154639174) internal successors, (1326), 582 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1326 transitions. [2022-03-03 17:47:04,899 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1326 transitions. Word has length 133 [2022-03-03 17:47:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:47:04,900 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1326 transitions. [2022-03-03 17:47:04,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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) [2022-03-03 17:47:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1326 transitions. [2022-03-03 17:47:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-03 17:47:04,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:04,901 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, 1, 1, 1, 1] [2022-03-03 17:47:04,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 17:47:04,901 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:04,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:04,902 INFO L85 PathProgramCache]: Analyzing trace with hash 282045507, now seen corresponding path program 2 times [2022-03-03 17:47:04,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:04,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205555383] [2022-03-03 17:47:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:04,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:47:05,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:05,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205555383] [2022-03-03 17:47:05,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205555383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:47:05,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:47:05,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:47:05,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310369067] [2022-03-03 17:47:05,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:47:05,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:47:05,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:47:05,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:47:05,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:47:05,004 INFO L87 Difference]: Start difference. First operand 583 states and 1326 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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) [2022-03-03 17:47:05,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:47:05,052 INFO L93 Difference]: Finished difference Result 727 states and 1713 transitions. [2022-03-03 17:47:05,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:47:05,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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 [2022-03-03 17:47:05,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:47:05,055 INFO L225 Difference]: With dead ends: 727 [2022-03-03 17:47:05,055 INFO L226 Difference]: Without dead ends: 727 [2022-03-03 17:47:05,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:47:05,056 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 150 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:47:05,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 467 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:47:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-03-03 17:47:05,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 611. [2022-03-03 17:47:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 2.3) internal successors, (1403), 610 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1403 transitions. [2022-03-03 17:47:05,067 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1403 transitions. Word has length 133 [2022-03-03 17:47:05,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:47:05,067 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1403 transitions. [2022-03-03 17:47:05,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 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) [2022-03-03 17:47:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1403 transitions. [2022-03-03 17:47:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-03 17:47:05,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:05,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:47:05,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 17:47:05,070 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:05,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:05,070 INFO L85 PathProgramCache]: Analyzing trace with hash 951456391, now seen corresponding path program 1 times [2022-03-03 17:47:05,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:05,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097972542] [2022-03-03 17:47:05,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:05,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:47:05,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:05,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097972542] [2022-03-03 17:47:05,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097972542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:47:05,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:47:05,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:47:05,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647064612] [2022-03-03 17:47:05,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:47:05,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:47:05,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:47:05,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:47:05,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:47:05,138 INFO L87 Difference]: Start difference. First operand 611 states and 1403 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 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) [2022-03-03 17:47:05,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:47:05,220 INFO L93 Difference]: Finished difference Result 701 states and 1529 transitions. [2022-03-03 17:47:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:47:05,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 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 139 [2022-03-03 17:47:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:47:05,223 INFO L225 Difference]: With dead ends: 701 [2022-03-03 17:47:05,223 INFO L226 Difference]: Without dead ends: 617 [2022-03-03 17:47:05,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:47:05,224 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 110 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:47:05,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 490 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:47:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-03-03 17:47:05,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 612. [2022-03-03 17:47:05,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 611 states have (on average 2.297872340425532) internal successors, (1404), 611 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1404 transitions. [2022-03-03 17:47:05,235 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1404 transitions. Word has length 139 [2022-03-03 17:47:05,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:47:05,235 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 1404 transitions. [2022-03-03 17:47:05,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 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) [2022-03-03 17:47:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1404 transitions. [2022-03-03 17:47:05,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-03 17:47:05,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:05,237 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:47:05,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 17:47:05,237 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:05,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:05,238 INFO L85 PathProgramCache]: Analyzing trace with hash 860679619, now seen corresponding path program 1 times [2022-03-03 17:47:05,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:05,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572269525] [2022-03-03 17:47:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:05,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 17:47:05,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:05,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572269525] [2022-03-03 17:47:05,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572269525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:47:05,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:47:05,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:47:05,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711988020] [2022-03-03 17:47:05,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:47:05,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:47:05,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:47:05,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:47:05,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:47:05,295 INFO L87 Difference]: Start difference. First operand 612 states and 1404 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:05,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:47:05,367 INFO L93 Difference]: Finished difference Result 663 states and 1484 transitions. [2022-03-03 17:47:05,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 17:47:05,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 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 [2022-03-03 17:47:05,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:47:05,369 INFO L225 Difference]: With dead ends: 663 [2022-03-03 17:47:05,369 INFO L226 Difference]: Without dead ends: 618 [2022-03-03 17:47:05,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:47:05,371 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 211 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:47:05,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 519 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:47:05,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-03-03 17:47:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 613. [2022-03-03 17:47:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 2.295751633986928) internal successors, (1405), 612 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 1405 transitions. [2022-03-03 17:47:05,381 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 1405 transitions. Word has length 146 [2022-03-03 17:47:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:47:05,381 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 1405 transitions. [2022-03-03 17:47:05,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 1405 transitions. [2022-03-03 17:47:05,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:47:05,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:05,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:47:05,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 17:47:05,383 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:05,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash -72994876, now seen corresponding path program 1 times [2022-03-03 17:47:05,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:05,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135582999] [2022-03-03 17:47:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:05,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-03 17:47:05,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:05,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135582999] [2022-03-03 17:47:05,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135582999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:47:05,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:47:05,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:47:05,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405627134] [2022-03-03 17:47:05,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:47:05,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:47:05,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:47:05,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:47:05,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:47:05,467 INFO L87 Difference]: Start difference. First operand 613 states and 1405 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:47:05,483 INFO L93 Difference]: Finished difference Result 552 states and 1257 transitions. [2022-03-03 17:47:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:47:05,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-03-03 17:47:05,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:47:05,485 INFO L225 Difference]: With dead ends: 552 [2022-03-03 17:47:05,485 INFO L226 Difference]: Without dead ends: 552 [2022-03-03 17:47:05,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:47:05,486 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 10 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:47:05,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 206 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:47:05,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-03-03 17:47:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2022-03-03 17:47:05,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 551 states have (on average 2.2813067150635207) internal successors, (1257), 551 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 1257 transitions. [2022-03-03 17:47:05,494 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 1257 transitions. Word has length 153 [2022-03-03 17:47:05,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:47:05,495 INFO L470 AbstractCegarLoop]: Abstraction has 552 states and 1257 transitions. [2022-03-03 17:47:05,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:47:05,495 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 1257 transitions. [2022-03-03 17:47:05,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:47:05,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:47:05,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:47:05,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 17:47:05,497 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:47:05,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:47:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2123275802, now seen corresponding path program 2 times [2022-03-03 17:47:05,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:47:05,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336059164] [2022-03-03 17:47:05,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:47:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:47:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:47:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:47:08,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:47:08,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336059164] [2022-03-03 17:47:08,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336059164] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:47:08,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677216780] [2022-03-03 17:47:08,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 17:47:08,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:47:08,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:47:08,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:47:08,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 17:47:08,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 17:47:08,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:47:08,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 91 conjunts are in the unsatisfiable core [2022-03-03 17:47:08,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:47:09,750 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 [2022-03-03 17:47:10,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2022-03-03 17:47:11,242 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-03 17:47:11,242 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 [2022-03-03 17:47:11,627 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-03 17:47:12,448 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 [2022-03-03 17:47:12,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:47:12,864 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 18 treesize of output 20 [2022-03-03 17:47:13,840 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 0 case distinctions, treesize of input 47 treesize of output 15 [2022-03-03 17:47:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:47:14,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:47:50,924 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-03-03 17:47:50,924 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 375 treesize of output 165 [2022-03-03 17:47:51,015 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:47:51,016 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1336 treesize of output 1322 [2022-03-03 17:47:51,053 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:47:51,053 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 1098 treesize of output 882 [2022-03-03 17:47:51,098 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:47:51,098 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 858 treesize of output 816 [2022-03-03 17:52:35,234 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 [2022-03-03 17:52:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:52:36,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677216780] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:52:36,364 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:52:36,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 43] total 119 [2022-03-03 17:52:36,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023761016] [2022-03-03 17:52:36,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:52:36,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-03-03 17:52:36,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:52:36,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-03-03 17:52:36,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=12984, Unknown=67, NotChecked=0, Total=14042 [2022-03-03 17:52:36,369 INFO L87 Difference]: Start difference. First operand 552 states and 1257 transitions. Second operand has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:52:56,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:52:56,029 INFO L93 Difference]: Finished difference Result 1856 states and 4477 transitions. [2022-03-03 17:52:56,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-03 17:52:56,029 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 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 153 [2022-03-03 17:52:56,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:52:56,036 INFO L225 Difference]: With dead ends: 1856 [2022-03-03 17:52:56,036 INFO L226 Difference]: Without dead ends: 1754 [2022-03-03 17:52:56,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 240 SyntacticMatches, 17 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14964 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=4877, Invalid=43142, Unknown=161, NotChecked=0, Total=48180 [2022-03-03 17:52:56,045 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 3482 mSDsluCounter, 8939 mSDsCounter, 0 mSdLazyCounter, 4333 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3482 SdHoareTripleChecker+Valid, 8555 SdHoareTripleChecker+Invalid, 8586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 4333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3990 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:52:56,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3482 Valid, 8555 Invalid, 8586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 4333 Invalid, 0 Unknown, 3990 Unchecked, 2.5s Time] [2022-03-03 17:52:56,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-03-03 17:52:56,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 753. [2022-03-03 17:52:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 752 states have (on average 2.179521276595745) internal successors, (1639), 752 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:52:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1639 transitions. [2022-03-03 17:52:56,061 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1639 transitions. Word has length 153 [2022-03-03 17:52:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:52:56,062 INFO L470 AbstractCegarLoop]: Abstraction has 753 states and 1639 transitions. [2022-03-03 17:52:56,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:52:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1639 transitions. [2022-03-03 17:52:56,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:52:56,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:52:56,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:52:56,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-03 17:52:56,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:52:56,283 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:52:56,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:52:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2078337974, now seen corresponding path program 3 times [2022-03-03 17:52:56,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:52:56,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005890415] [2022-03-03 17:52:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:52:56,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:52:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:53:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:53:00,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:53:00,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005890415] [2022-03-03 17:53:00,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005890415] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:53:00,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744896345] [2022-03-03 17:53:00,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 17:53:00,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:53:00,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:53:00,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:53:00,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 17:53:00,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-03 17:53:00,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:53:00,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 92 conjunts are in the unsatisfiable core [2022-03-03 17:53:00,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:53:01,135 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 [2022-03-03 17:53:01,459 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2022-03-03 17:53:02,709 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-03 17:53:02,709 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 [2022-03-03 17:53:03,164 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-03 17:53:04,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 [2022-03-03 17:53:04,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:53:04,439 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 29 treesize of output 29 [2022-03-03 17:53:05,343 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 0 case distinctions, treesize of input 58 treesize of output 18 [2022-03-03 17:53:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:53:05,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:54:01,901 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-03-03 17:54:01,902 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 325 treesize of output 151 [2022-03-03 17:54:01,965 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:54:01,966 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 832 treesize of output 914 [2022-03-03 17:54:02,015 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:54:02,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 714 treesize of output 744 [2022-03-03 17:54:02,055 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:54:02,055 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 630 treesize of output 558 [2022-03-03 17:54:54,536 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 [2022-03-03 17:54:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:54:55,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744896345] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:54:55,946 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:54:55,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 45, 45] total 128 [2022-03-03 17:54:55,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668199966] [2022-03-03 17:54:55,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:54:55,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-03-03 17:54:55,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:54:55,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-03-03 17:54:55,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1018, Invalid=15203, Unknown=35, NotChecked=0, Total=16256 [2022-03-03 17:54:55,950 INFO L87 Difference]: Start difference. First operand 753 states and 1639 transitions. Second operand has 128 states, 128 states have (on average 3.2109375) internal successors, (411), 128 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:55:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:55:34,570 INFO L93 Difference]: Finished difference Result 3087 states and 7755 transitions. [2022-03-03 17:55:34,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-03-03 17:55:34,571 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 3.2109375) internal successors, (411), 128 states have internal predecessors, (411), 0 states have call successors, (0), 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 153 [2022-03-03 17:55:34,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:55:34,580 INFO L225 Difference]: With dead ends: 3087 [2022-03-03 17:55:34,581 INFO L226 Difference]: Without dead ends: 2985 [2022-03-03 17:55:34,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 231 SyntacticMatches, 7 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26628 ImplicationChecksByTransitivity, 43.4s TimeCoverageRelationStatistics Valid=6433, Invalid=78435, Unknown=104, NotChecked=0, Total=84972 [2022-03-03 17:55:34,587 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 2841 mSDsluCounter, 16607 mSDsCounter, 0 mSdLazyCounter, 7967 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2841 SdHoareTripleChecker+Valid, 15827 SdHoareTripleChecker+Invalid, 15078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 7967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6795 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:55:34,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2841 Valid, 15827 Invalid, 15078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [316 Valid, 7967 Invalid, 0 Unknown, 6795 Unchecked, 4.6s Time] [2022-03-03 17:55:34,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2022-03-03 17:55:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1021. [2022-03-03 17:55:34,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1020 states have (on average 2.377450980392157) internal successors, (2425), 1020 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:55:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 2425 transitions. [2022-03-03 17:55:34,617 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 2425 transitions. Word has length 153 [2022-03-03 17:55:34,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:55:34,617 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 2425 transitions. [2022-03-03 17:55:34,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 3.2109375) internal successors, (411), 128 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:55:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 2425 transitions. [2022-03-03 17:55:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:55:34,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:55:34,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:55:34,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-03 17:55:34,827 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,SelfDestructingSolverStorable9 [2022-03-03 17:55:34,828 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:55:34,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:55:34,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1100911208, now seen corresponding path program 4 times [2022-03-03 17:55:34,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:55:34,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290388769] [2022-03-03 17:55:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:55:34,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:55:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:55:37,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:55:37,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:55:37,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290388769] [2022-03-03 17:55:37,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290388769] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:55:37,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813827087] [2022-03-03 17:55:37,018 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 17:55:37,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:55:37,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:55:37,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:55:37,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 17:55:37,107 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 17:55:37,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:55:37,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-03 17:55:37,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:55:37,199 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 [2022-03-03 17:55:37,251 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-03-03 17:55:37,251 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 [2022-03-03 17:55:38,070 INFO L353 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-03-03 17:55:38,071 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-03-03 17:55:38,418 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-03 17:55:39,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:55:39,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:55:39,726 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-03-03 17:55:39,726 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 17 [2022-03-03 17:55:40,074 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-03 17:55:40,819 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-03-03 17:55:41,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:55:41,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-03-03 17:55:41,881 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 0 case distinctions, treesize of input 58 treesize of output 18 [2022-03-03 17:55:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:55:42,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:56:34,978 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-03-03 17:56:34,979 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 325 treesize of output 151 [2022-03-03 17:56:35,032 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:56:35,033 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 832 treesize of output 914 [2022-03-03 17:56:35,064 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:56:35,064 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 690 treesize of output 618 [2022-03-03 17:56:35,107 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:56:35,107 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 594 treesize of output 624 [2022-03-03 17:56:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:56:47,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813827087] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:56:47,570 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:56:47,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 45, 46] total 124 [2022-03-03 17:56:47,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589006698] [2022-03-03 17:56:47,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:56:47,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-03-03 17:56:47,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:56:47,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-03-03 17:56:47,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1126, Invalid=14053, Unknown=73, NotChecked=0, Total=15252 [2022-03-03 17:56:47,581 INFO L87 Difference]: Start difference. First operand 1021 states and 2425 transitions. Second operand has 124 states, 124 states have (on average 3.314516129032258) internal successors, (411), 124 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:57:02,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:57:02,671 INFO L93 Difference]: Finished difference Result 1900 states and 4655 transitions. [2022-03-03 17:57:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-03 17:57:02,672 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 3.314516129032258) internal successors, (411), 124 states have internal predecessors, (411), 0 states have call successors, (0), 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 153 [2022-03-03 17:57:02,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:57:02,679 INFO L225 Difference]: With dead ends: 1900 [2022-03-03 17:57:02,679 INFO L226 Difference]: Without dead ends: 1849 [2022-03-03 17:57:02,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 238 SyntacticMatches, 9 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15407 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=4802, Invalid=42355, Unknown=149, NotChecked=0, Total=47306 [2022-03-03 17:57:02,681 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 3226 mSDsluCounter, 7613 mSDsCounter, 0 mSdLazyCounter, 3577 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 7100 SdHoareTripleChecker+Invalid, 8097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 3577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4320 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:57:02,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3226 Valid, 7100 Invalid, 8097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 3577 Invalid, 0 Unknown, 4320 Unchecked, 1.8s Time] [2022-03-03 17:57:02,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-03-03 17:57:02,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1005. [2022-03-03 17:57:02,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 1004 states have (on average 2.3595617529880477) internal successors, (2369), 1004 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:57:02,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 2369 transitions. [2022-03-03 17:57:02,702 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 2369 transitions. Word has length 153 [2022-03-03 17:57:02,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:57:02,703 INFO L470 AbstractCegarLoop]: Abstraction has 1005 states and 2369 transitions. [2022-03-03 17:57:02,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 3.314516129032258) internal successors, (411), 124 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:57:02,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 2369 transitions. [2022-03-03 17:57:02,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:57:02,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:57:02,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:57:02,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-03 17:57:02,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:57:02,923 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:57:02,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:57:02,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1173633100, now seen corresponding path program 5 times [2022-03-03 17:57:02,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:57:02,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070256243] [2022-03-03 17:57:02,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:57:02,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:57:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:57:07,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:57:07,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:57:07,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070256243] [2022-03-03 17:57:07,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070256243] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:57:07,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537648249] [2022-03-03 17:57:07,048 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 17:57:07,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:57:07,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:57:07,049 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:57:07,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 17:57:07,165 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-03 17:57:07,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:57:07,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 61 conjunts are in the unsatisfiable core [2022-03-03 17:57:07,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:57:09,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:57:09,743 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 29 treesize of output 29 [2022-03-03 17:57:10,323 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:57:10,324 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 54 treesize of output 36 [2022-03-03 17:57:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:57:10,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:57:12,074 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:57:12,074 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 176 treesize of output 236 [2022-03-03 17:57:12,094 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:57:12,094 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 124 treesize of output 142 [2022-03-03 17:57:20,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:57:20,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537648249] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:57:20,173 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:57:20,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 37, 32] total 106 [2022-03-03 17:57:20,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22429335] [2022-03-03 17:57:20,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:57:20,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-03-03 17:57:20,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:57:20,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-03-03 17:57:20,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=10593, Unknown=3, NotChecked=0, Total=11130 [2022-03-03 17:57:20,176 INFO L87 Difference]: Start difference. First operand 1005 states and 2369 transitions. Second operand has 106 states, 106 states have (on average 3.8773584905660377) internal successors, (411), 106 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:58:17,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:58:17,178 INFO L93 Difference]: Finished difference Result 4107 states and 10422 transitions. [2022-03-03 17:58:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-03 17:58:17,178 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 3.8773584905660377) internal successors, (411), 106 states have internal predecessors, (411), 0 states have call successors, (0), 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 153 [2022-03-03 17:58:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:58:17,191 INFO L225 Difference]: With dead ends: 4107 [2022-03-03 17:58:17,191 INFO L226 Difference]: Without dead ends: 3873 [2022-03-03 17:58:17,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 253 SyntacticMatches, 51 SemanticMatches, 283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29974 ImplicationChecksByTransitivity, 57.3s TimeCoverageRelationStatistics Valid=6453, Invalid=74427, Unknown=60, NotChecked=0, Total=80940 [2022-03-03 17:58:17,196 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 4378 mSDsluCounter, 12483 mSDsCounter, 0 mSdLazyCounter, 9626 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4378 SdHoareTripleChecker+Valid, 11949 SdHoareTripleChecker+Invalid, 13012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 9626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2826 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:58:17,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4378 Valid, 11949 Invalid, 13012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 9626 Invalid, 0 Unknown, 2826 Unchecked, 6.1s Time] [2022-03-03 17:58:17,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3873 states. [2022-03-03 17:58:17,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3873 to 1195. [2022-03-03 17:58:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1194 states have (on average 2.3877721943048575) internal successors, (2851), 1194 states have internal predecessors, (2851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:58:17,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 2851 transitions. [2022-03-03 17:58:17,233 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 2851 transitions. Word has length 153 [2022-03-03 17:58:17,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:58:17,234 INFO L470 AbstractCegarLoop]: Abstraction has 1195 states and 2851 transitions. [2022-03-03 17:58:17,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 3.8773584905660377) internal successors, (411), 106 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:58:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 2851 transitions. [2022-03-03 17:58:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:58:17,236 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:58:17,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:58:17,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 17:58:17,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:58:17,453 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:58:17,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:58:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2028444662, now seen corresponding path program 6 times [2022-03-03 17:58:17,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:58:17,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260596299] [2022-03-03 17:58:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:58:17,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:58:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:58:20,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:58:20,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:58:20,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260596299] [2022-03-03 17:58:20,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260596299] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:58:20,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693929482] [2022-03-03 17:58:20,336 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 17:58:20,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:58:20,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:58:20,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:58:20,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-03 17:58:20,430 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-03 17:58:20,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:58:20,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-03 17:58:20,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:58:22,766 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2022-03-03 17:58:23,437 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 [2022-03-03 17:58:23,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:58:23,733 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 18 treesize of output 20 [2022-03-03 17:58:24,199 INFO L353 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-03-03 17:58:24,199 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 41 treesize of output 13 [2022-03-03 17:58:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:58:24,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:58:26,801 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:58:26,802 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 113 treesize of output 77 [2022-03-03 17:58:26,855 INFO L353 Elim1Store]: treesize reduction 12, result has 89.0 percent of original size [2022-03-03 17:58:26,856 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 510 treesize of output 526 [2022-03-03 17:58:26,880 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:58:26,880 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 406 treesize of output 346 [2022-03-03 17:58:26,914 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:58:26,915 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 322 treesize of output 358 [2022-03-03 17:59:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:59:24,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693929482] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:59:24,012 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:59:24,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 42, 36] total 110 [2022-03-03 17:59:24,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520960687] [2022-03-03 17:59:24,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:59:24,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-03-03 17:59:24,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:59:24,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-03-03 17:59:24,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=908, Invalid=11071, Unknown=11, NotChecked=0, Total=11990 [2022-03-03 17:59:24,014 INFO L87 Difference]: Start difference. First operand 1195 states and 2851 transitions. Second operand has 110 states, 110 states have (on average 3.6545454545454548) internal successors, (402), 110 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:59:42,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:59:42,985 INFO L93 Difference]: Finished difference Result 3498 states and 9067 transitions. [2022-03-03 17:59:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-03 17:59:42,986 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 110 states have (on average 3.6545454545454548) internal successors, (402), 110 states have internal predecessors, (402), 0 states have call successors, (0), 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 153 [2022-03-03 17:59:42,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:59:42,997 INFO L225 Difference]: With dead ends: 3498 [2022-03-03 17:59:42,997 INFO L226 Difference]: Without dead ends: 3396 [2022-03-03 17:59:43,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 239 SyntacticMatches, 22 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18071 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=4408, Invalid=48242, Unknown=20, NotChecked=0, Total=52670 [2022-03-03 17:59:43,001 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 2975 mSDsluCounter, 10319 mSDsCounter, 0 mSdLazyCounter, 6708 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 9788 SdHoareTripleChecker+Invalid, 10318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 6708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3263 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:59:43,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2975 Valid, 9788 Invalid, 10318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 6708 Invalid, 0 Unknown, 3263 Unchecked, 3.3s Time] [2022-03-03 17:59:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2022-03-03 17:59:43,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 1672. [2022-03-03 17:59:43,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 2.5858767205266306) internal successors, (4321), 1671 states have internal predecessors, (4321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:59:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 4321 transitions. [2022-03-03 17:59:43,036 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 4321 transitions. Word has length 153 [2022-03-03 17:59:43,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:59:43,036 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 4321 transitions. [2022-03-03 17:59:43,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 3.6545454545454548) internal successors, (402), 110 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:59:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 4321 transitions. [2022-03-03 17:59:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:59:43,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:59:43,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:59:43,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-03 17:59:43,257 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,SelfDestructingSolverStorable12 [2022-03-03 17:59:43,257 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:59:43,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:59:43,258 INFO L85 PathProgramCache]: Analyzing trace with hash -520185780, now seen corresponding path program 7 times [2022-03-03 17:59:43,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:59:43,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26256300] [2022-03-03 17:59:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:59:43,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:59:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:59:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:59:45,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:59:45,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26256300] [2022-03-03 17:59:45,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26256300] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:59:45,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913732794] [2022-03-03 17:59:45,446 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-03 17:59:45,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:59:45,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:59:45,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:59:45,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-03 17:59:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:59:45,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 73 conjunts are in the unsatisfiable core [2022-03-03 17:59:45,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-03 17:59:45,910 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-03 17:59:45,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-03 17:59:45,937 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 [2022-03-03 17:59:45,950 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 17:59:46,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:59:46,111 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. [2022-03-03 17:59:46,112 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-03 17:59:46,113 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-03 17:59:46,115 INFO L732 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1, 1, 1, 1] [2022-03-03 17:59:46,116 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 17:59:46,116 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 17:59:46,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 05:59:46 BasicIcfg [2022-03-03 17:59:46,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 17:59:46,117 INFO L158 Benchmark]: Toolchain (without parser) took 763712.28ms. Allocated memory was 195.0MB in the beginning and 659.6MB in the end (delta: 464.5MB). Free memory was 144.2MB in the beginning and 213.4MB in the end (delta: -69.2MB). Peak memory consumption was 396.0MB. Max. memory is 8.0GB. [2022-03-03 17:59:46,118 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 17:59:46,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.77ms. Allocated memory is still 195.0MB. Free memory was 143.9MB in the beginning and 167.8MB in the end (delta: -23.9MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. [2022-03-03 17:59:46,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.87ms. Allocated memory is still 195.0MB. Free memory was 167.8MB in the beginning and 165.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 17:59:46,118 INFO L158 Benchmark]: Boogie Preprocessor took 29.19ms. Allocated memory is still 195.0MB. Free memory was 165.7MB in the beginning and 164.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 17:59:46,118 INFO L158 Benchmark]: RCFGBuilder took 558.96ms. Allocated memory is still 195.0MB. Free memory was 164.3MB in the beginning and 139.9MB in the end (delta: 24.4MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-03-03 17:59:46,118 INFO L158 Benchmark]: TraceAbstraction took 762845.01ms. Allocated memory was 195.0MB in the beginning and 659.6MB in the end (delta: 464.5MB). Free memory was 139.1MB in the beginning and 213.4MB in the end (delta: -74.3MB). Peak memory consumption was 391.0MB. Max. memory is 8.0GB. [2022-03-03 17:59:46,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 223.77ms. Allocated memory is still 195.0MB. Free memory was 143.9MB in the beginning and 167.8MB in the end (delta: -23.9MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.87ms. Allocated memory is still 195.0MB. Free memory was 167.8MB in the beginning and 165.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.19ms. Allocated memory is still 195.0MB. Free memory was 165.7MB in the beginning and 164.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 558.96ms. Allocated memory is still 195.0MB. Free memory was 164.3MB in the beginning and 139.9MB in the end (delta: 24.4MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 762845.01ms. Allocated memory was 195.0MB in the beginning and 659.6MB in the end (delta: 464.5MB). Free memory was 139.1MB in the beginning and 213.4MB in the end (delta: -74.3MB). Peak memory consumption was 391.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 186 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 762.7s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 150.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17936 SdHoareTripleChecker+Valid, 18.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17936 mSDsluCounter, 56239 SdHoareTripleChecker+Invalid, 15.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 21194 IncrementalHoareTripleChecker+Unchecked, 57908 mSDsCounter, 1699 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32712 IncrementalHoareTripleChecker+Invalid, 55605 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1699 mSolverCounterUnsat, 2172 mSDtfsCounter, 32712 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2596 GetRequests, 1221 SyntacticMatches, 106 SemanticMatches, 1269 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 105052 ImplicationChecksByTransitivity, 169.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1672occurred in iteration=13, InterpolantAutomatonStates: 812, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 9403 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 607.0s InterpolantComputationTime, 2621 NumberOfCodeBlocks, 2608 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3363 ConstructedInterpolants, 341 QuantifiedInterpolants, 112157 SizeOfPredicates, 288 NumberOfNonLiveVariables, 1756 ConjunctsInSsa, 428 ConjunctsInUnsatCore, 23 InterpolantComputations, 8 PerfectInterpolantSequences, 14/72 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