/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/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-18 13:51:50,126 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-18 13:51:50,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-18 13:51:50,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-18 13:51:50,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-18 13:51:50,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-18 13:51:50,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-18 13:51:50,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-18 13:51:50,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-18 13:51:50,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-18 13:51:50,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-18 13:51:50,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-18 13:51:50,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-18 13:51:50,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-18 13:51:50,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-18 13:51:50,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-18 13:51:50,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-18 13:51:50,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-18 13:51:50,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-18 13:51:50,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-18 13:51:50,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-18 13:51:50,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-18 13:51:50,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-18 13:51:50,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-18 13:51:50,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-18 13:51:50,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-18 13:51:50,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-18 13:51:50,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-18 13:51:50,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-18 13:51:50,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-18 13:51:50,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-18 13:51:50,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-18 13:51:50,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2022-02-18 13:51:50,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-18 13:51:50,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-18 13:51:50,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-18 13:51:50,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-18 13:51:50,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-18 13:51:50,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-18 13:51:50,229 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
[2022-02-18 13:51:50,251 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-18 13:51:50,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-18 13:51:50,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-18 13:51:50,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-18 13:51:50,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-18 13:51:50,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-18 13:51:50,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-18 13:51:50,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-18 13:51:50,253 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-18 13:51:50,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-18 13:51:50,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-18 13:51:50,255 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-18 13:51:50,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-18 13:51:50,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-18 13:51:50,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-18 13:51:50,255 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-18 13:51:50,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-18 13:51:50,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 13:51:50,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-18 13:51:50,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-18 13:51:50,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-18 13:51:50,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-18 13:51:50,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-18 13:51:50,256 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-18 13:51:50,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-18 13:51:50,256 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-18 13:51:50,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-18 13:51:50,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-18 13:51:50,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-18 13:51:50,469 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-18 13:51:50,469 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-18 13:51:50,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i
[2022-02-18 13:51:50,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8237b775d/bd6a45703a43496daca59f7c16f7745b/FLAGbca89b7c1
[2022-02-18 13:51:50,956 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-18 13:51:50,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i
[2022-02-18 13:51:50,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8237b775d/bd6a45703a43496daca59f7c16f7745b/FLAGbca89b7c1
[2022-02-18 13:51:50,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8237b775d/bd6a45703a43496daca59f7c16f7745b
[2022-02-18 13:51:50,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-18 13:51:50,987 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-18 13:51:50,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-18 13:51:50,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-18 13:51:51,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-18 13:51:51,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:51:50" (1/1) ...
[2022-02-18 13:51:51,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62667367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51, skipping insertion in model container
[2022-02-18 13:51:51,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:51:50" (1/1) ...
[2022-02-18 13:51:51,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-18 13:51:51,054 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-18 13:51:51,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128]
[2022-02-18 13:51:51,300 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-18 13:51:51,305 INFO L203 MainTranslator]: Completed pre-run
[2022-02-18 13:51:51,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128]
[2022-02-18 13:51:51,334 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-18 13:51:51,355 INFO L208 MainTranslator]: Completed translation
[2022-02-18 13:51:51,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51 WrapperNode
[2022-02-18 13:51:51,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-18 13:51:51,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-18 13:51:51,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-18 13:51:51,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-18 13:51:51,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,384 INFO L137 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118
[2022-02-18 13:51:51,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-18 13:51:51,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-18 13:51:51,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-18 13:51:51,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-18 13:51:51,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-18 13:51:51,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-18 13:51:51,402 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-18 13:51:51,402 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-18 13:51:51,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (1/1) ...
[2022-02-18 13:51:51,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 13:51:51,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:51:51,442 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)
[2022-02-18 13:51:51,452 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
[2022-02-18 13:51:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-18 13:51:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure worker
[2022-02-18 13:51:51,496 INFO L138 BoogieDeclarations]: Found implementation of procedure worker
[2022-02-18 13:51:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-18 13:51:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-02-18 13:51:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-18 13:51:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-18 13:51:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-18 13:51:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-18 13:51:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-18 13:51:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-18 13:51:51,512 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-18 13:51:51,604 INFO L234 CfgBuilder]: Building ICFG
[2022-02-18 13:51:51,605 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-18 13:51:51,781 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-18 13:51:51,786 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-18 13:51:51,787 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2022-02-18 13:51:51,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:51:51 BoogieIcfgContainer
[2022-02-18 13:51:51,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-18 13:51:51,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-18 13:51:51,789 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-18 13:51:51,791 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-18 13:51:51,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:51:50" (1/3) ...
[2022-02-18 13:51:51,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454b35ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:51:51, skipping insertion in model container
[2022-02-18 13:51:51,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:51:51" (2/3) ...
[2022-02-18 13:51:51,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454b35ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:51:51, skipping insertion in model container
[2022-02-18 13:51:51,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:51:51" (3/3) ...
[2022-02-18 13:51:51,793 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i
[2022-02-18 13:51:51,796 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-18 13:51:51,796 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-18 13:51:51,796 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-02-18 13:51:51,796 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-18 13:51:51,846 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,846 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,846 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,846 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,847 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,848 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,849 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,850 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,851 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,852 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,853 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,854 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,855 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,855 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,856 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,856 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,857 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,857 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,857 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,857 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,857 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,857 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,857 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,858 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,859 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,859 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,859 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,860 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,862 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,867 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,867 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,867 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,867 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,867 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,867 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,868 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,868 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,868 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,869 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,870 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,870 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,870 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,871 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,872 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,872 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,873 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,874 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,874 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,874 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,874 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,874 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,874 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,874 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,874 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,875 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,875 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,875 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,875 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,875 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,876 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,876 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,876 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,876 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,876 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,876 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,876 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,877 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,877 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,877 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,877 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,877 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,877 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,877 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,877 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,878 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,878 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,880 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,880 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,880 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,881 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,881 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,881 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,882 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,882 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,888 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,888 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,888 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,888 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,888 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,888 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,888 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,888 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,889 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,889 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,889 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,889 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,889 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,889 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,889 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,889 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,890 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,890 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,890 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,890 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2022-02-18 13:51:51,891 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-02-18 13:51:51,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-18 13:51:51,936 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
[2022-02-18 13:51:51,937 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2022-02-18 13:51:51,947 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 142 transitions, 289 flow
[2022-02-18 13:51:52,041 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 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)
[2022-02-18 13:51:52,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 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)
[2022-02-18 13:51:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2022-02-18 13:51:52,060 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:51:52,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:51:52,061 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:51:52,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:51:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1865521660, now seen corresponding path program 1 times
[2022-02-18 13:51:52,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:51:52,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443104441]
[2022-02-18 13:51:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:51:52,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:51:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:51:52,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:51:52,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:51:52,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443104441]
[2022-02-18 13:51:52,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443104441] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:51:52,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:51:52,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-02-18 13:51:52,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198965251]
[2022-02-18 13:51:52,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:51:52,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-02-18 13:51:52,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:51:52,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-02-18 13:51:52,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-02-18 13:51:52,304 INFO L87 Difference]: Start difference. First operand has 1949 states, 1947 states have (on average 2.12788906009245) internal successors, (4143), 1948 states have internal predecessors, (4143), 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 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:51:52,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:51:52,374 INFO L93 Difference]: Finished difference Result 1877 states and 3836 transitions.
[2022-02-18 13:51:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-18 13:51:52,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59
[2022-02-18 13:51:52,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:51:52,396 INFO L225 Difference]: With dead ends: 1877
[2022-02-18 13:51:52,397 INFO L226 Difference]: Without dead ends: 1877
[2022-02-18 13:51:52,398 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
[2022-02-18 13:51:52,402 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:51:52,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 13:51:52,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states.
[2022-02-18 13:51:52,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877.
[2022-02-18 13:51:52,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1875 states have (on average 2.0458666666666665) internal successors, (3836), 1876 states have internal predecessors, (3836), 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)
[2022-02-18 13:51:52,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3836 transitions.
[2022-02-18 13:51:52,494 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3836 transitions. Word has length 59
[2022-02-18 13:51:52,494 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:51:52,494 INFO L470 AbstractCegarLoop]: Abstraction has 1877 states and 3836 transitions.
[2022-02-18 13:51:52,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:51:52,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3836 transitions.
[2022-02-18 13:51:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2022-02-18 13:51:52,497 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:51:52,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:51:52,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-18 13:51:52,498 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:51:52,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:51:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash 326788120, now seen corresponding path program 1 times
[2022-02-18 13:51:52,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:51:52,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120785653]
[2022-02-18 13:51:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:51:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:51:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:51:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:51:52,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:51:52,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120785653]
[2022-02-18 13:51:52,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120785653] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:51:52,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:51:52,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-02-18 13:51:52,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905032988]
[2022-02-18 13:51:52,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:51:52,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-02-18 13:51:52,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:51:52,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-02-18 13:51:52,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-02-18 13:51:52,653 INFO L87 Difference]: Start difference. First operand 1877 states and 3836 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:51:53,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:51:53,011 INFO L93 Difference]: Finished difference Result 5657 states and 11744 transitions.
[2022-02-18 13:51:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-02-18 13:51:53,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61
[2022-02-18 13:51:53,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:51:53,029 INFO L225 Difference]: With dead ends: 5657
[2022-02-18 13:51:53,030 INFO L226 Difference]: Without dead ends: 5657
[2022-02-18 13:51:53,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462
[2022-02-18 13:51:53,033 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 589 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-18 13:51:53,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 2121 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-18 13:51:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5657 states.
[2022-02-18 13:51:53,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5657 to 2135.
[2022-02-18 13:51:53,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2133 states have (on average 2.0595405532114395) internal successors, (4393), 2134 states have internal predecessors, (4393), 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)
[2022-02-18 13:51:53,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 4393 transitions.
[2022-02-18 13:51:53,103 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 4393 transitions. Word has length 61
[2022-02-18 13:51:53,104 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:51:53,105 INFO L470 AbstractCegarLoop]: Abstraction has 2135 states and 4393 transitions.
[2022-02-18 13:51:53,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:51:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 4393 transitions.
[2022-02-18 13:51:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2022-02-18 13:51:53,109 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:51:53,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:51:53,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-18 13:51:53,110 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:51:53,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:51:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1938685600, now seen corresponding path program 1 times
[2022-02-18 13:51:53,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:51:53,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797098692]
[2022-02-18 13:51:53,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:51:53,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:51:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:51:53,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:51:53,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:51:53,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797098692]
[2022-02-18 13:51:53,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797098692] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:51:53,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:51:53,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2022-02-18 13:51:53,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167489035]
[2022-02-18 13:51:53,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:51:53,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-02-18 13:51:53,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:51:53,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-02-18 13:51:53,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210
[2022-02-18 13:51:53,363 INFO L87 Difference]: Start difference. First operand 2135 states and 4393 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:51:54,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:51:54,414 INFO L93 Difference]: Finished difference Result 6430 states and 13379 transitions.
[2022-02-18 13:51:54,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-18 13:51:54,415 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61
[2022-02-18 13:51:54,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:51:54,460 INFO L225 Difference]: With dead ends: 6430
[2022-02-18 13:51:54,460 INFO L226 Difference]: Without dead ends: 6430
[2022-02-18 13:51:54,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=589, Invalid=1861, Unknown=0, NotChecked=0, Total=2450
[2022-02-18 13:51:54,462 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1547 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-02-18 13:51:54,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 2490 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-02-18 13:51:54,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states.
[2022-02-18 13:51:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 3623.
[2022-02-18 13:51:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3623 states, 3621 states have (on average 2.0660038663352664) internal successors, (7481), 3622 states have internal predecessors, (7481), 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)
[2022-02-18 13:51:54,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 7481 transitions.
[2022-02-18 13:51:54,535 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 7481 transitions. Word has length 61
[2022-02-18 13:51:54,536 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:51:54,536 INFO L470 AbstractCegarLoop]: Abstraction has 3623 states and 7481 transitions.
[2022-02-18 13:51:54,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:51:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 7481 transitions.
[2022-02-18 13:51:54,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:51:54,539 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:51:54,539 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]
[2022-02-18 13:51:54,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-18 13:51:54,539 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:51:54,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:51:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash -432958387, now seen corresponding path program 1 times
[2022-02-18 13:51:54,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:51:54,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977588543]
[2022-02-18 13:51:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:51:54,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:51:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:51:54,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:51:54,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:51:54,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977588543]
[2022-02-18 13:51:54,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977588543] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:51:54,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:51:54,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2022-02-18 13:51:54,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329507875]
[2022-02-18 13:51:54,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:51:54,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-02-18 13:51:54,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:51:54,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-02-18 13:51:54,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2022-02-18 13:51:54,785 INFO L87 Difference]: Start difference. First operand 3623 states and 7481 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-18 13:51:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:51:56,958 INFO L93 Difference]: Finished difference Result 8900 states and 18300 transitions.
[2022-02-18 13:51:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states.
[2022-02-18 13:51:56,959 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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 78
[2022-02-18 13:51:56,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:51:56,986 INFO L225 Difference]: With dead ends: 8900
[2022-02-18 13:51:56,986 INFO L226 Difference]: Without dead ends: 8900
[2022-02-18 13:51:56,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1716 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1046, Invalid=4504, Unknown=0, NotChecked=0, Total=5550
[2022-02-18 13:51:56,988 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 3901 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-02-18 13:51:56,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3901 Valid, 4325 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-02-18 13:51:56,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8900 states.
[2022-02-18 13:51:57,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8900 to 5530.
[2022-02-18 13:51:57,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5530 states, 5528 states have (on average 2.0759768451519536) internal successors, (11476), 5529 states have internal predecessors, (11476), 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)
[2022-02-18 13:51:57,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 11476 transitions.
[2022-02-18 13:51:57,099 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 11476 transitions. Word has length 78
[2022-02-18 13:51:57,099 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:51:57,100 INFO L470 AbstractCegarLoop]: Abstraction has 5530 states and 11476 transitions.
[2022-02-18 13:51:57,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-18 13:51:57,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 11476 transitions.
[2022-02-18 13:51:57,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:51:57,102 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:51:57,103 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]
[2022-02-18 13:51:57,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-18 13:51:57,103 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:51:57,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:51:57,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1900567917, now seen corresponding path program 2 times
[2022-02-18 13:51:57,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:51:57,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162582552]
[2022-02-18 13:51:57,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:51:57,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:51:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:51:57,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:51:57,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:51:57,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162582552]
[2022-02-18 13:51:57,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162582552] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:51:57,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:51:57,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2022-02-18 13:51:57,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979269354]
[2022-02-18 13:51:57,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:51:57,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-02-18 13:51:57,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:51:57,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-02-18 13:51:57,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2022-02-18 13:51:57,326 INFO L87 Difference]: Start difference. First operand 5530 states and 11476 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-18 13:51:59,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:51:59,684 INFO L93 Difference]: Finished difference Result 13090 states and 26982 transitions.
[2022-02-18 13:51:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states.
[2022-02-18 13:51:59,684 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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 78
[2022-02-18 13:51:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:51:59,713 INFO L225 Difference]: With dead ends: 13090
[2022-02-18 13:51:59,714 INFO L226 Difference]: Without dead ends: 13090
[2022-02-18 13:51:59,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2724 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1449, Invalid=6561, Unknown=0, NotChecked=0, Total=8010
[2022-02-18 13:51:59,718 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 4458 mSDsluCounter, 4270 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4458 SdHoareTripleChecker+Valid, 4713 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-02-18 13:51:59,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4458 Valid, 4713 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-02-18 13:51:59,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13090 states.
[2022-02-18 13:51:59,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13090 to 5536.
[2022-02-18 13:51:59,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5536 states, 5534 states have (on average 2.0758944705457174) internal successors, (11488), 5535 states have internal predecessors, (11488), 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)
[2022-02-18 13:51:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5536 states to 5536 states and 11488 transitions.
[2022-02-18 13:51:59,876 INFO L78 Accepts]: Start accepts. Automaton has 5536 states and 11488 transitions. Word has length 78
[2022-02-18 13:51:59,876 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:51:59,876 INFO L470 AbstractCegarLoop]: Abstraction has 5536 states and 11488 transitions.
[2022-02-18 13:51:59,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-18 13:51:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5536 states and 11488 transitions.
[2022-02-18 13:51:59,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:51:59,879 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:51:59,879 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]
[2022-02-18 13:51:59,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-18 13:51:59,879 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:51:59,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:51:59,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2057331115, now seen corresponding path program 3 times
[2022-02-18 13:51:59,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:51:59,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387428306]
[2022-02-18 13:51:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:51:59,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:51:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:00,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:00,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387428306]
[2022-02-18 13:52:00,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387428306] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:00,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:00,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2022-02-18 13:52:00,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005539506]
[2022-02-18 13:52:00,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:00,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-02-18 13:52:00,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:00,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-02-18 13:52:00,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2022-02-18 13:52:00,170 INFO L87 Difference]: Start difference. First operand 5536 states and 11488 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-18 13:52:02,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:02,620 INFO L93 Difference]: Finished difference Result 10751 states and 22152 transitions.
[2022-02-18 13:52:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-18 13:52:02,620 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:02,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:02,667 INFO L225 Difference]: With dead ends: 10751
[2022-02-18 13:52:02,668 INFO L226 Difference]: Without dead ends: 10751
[2022-02-18 13:52:02,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1922 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1227, Invalid=4935, Unknown=0, NotChecked=0, Total=6162
[2022-02-18 13:52:02,672 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 4107 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:02,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4107 Valid, 3627 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-02-18 13:52:02,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10751 states.
[2022-02-18 13:52:02,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10751 to 6059.
[2022-02-18 13:52:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6059 states, 6057 states have (on average 2.083209509658247) internal successors, (12618), 6058 states have internal predecessors, (12618), 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)
[2022-02-18 13:52:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6059 states to 6059 states and 12618 transitions.
[2022-02-18 13:52:02,792 INFO L78 Accepts]: Start accepts. Automaton has 6059 states and 12618 transitions. Word has length 78
[2022-02-18 13:52:02,793 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:02,793 INFO L470 AbstractCegarLoop]: Abstraction has 6059 states and 12618 transitions.
[2022-02-18 13:52:02,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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)
[2022-02-18 13:52:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand 6059 states and 12618 transitions.
[2022-02-18 13:52:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:02,799 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:02,799 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]
[2022-02-18 13:52:02,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-18 13:52:02,800 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:02,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:02,800 INFO L85 PathProgramCache]: Analyzing trace with hash -639973645, now seen corresponding path program 1 times
[2022-02-18 13:52:02,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:02,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661106631]
[2022-02-18 13:52:02,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:02,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:03,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:03,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661106631]
[2022-02-18 13:52:03,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661106631] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:03,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:03,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2022-02-18 13:52:03,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72328046]
[2022-02-18 13:52:03,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:03,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-02-18 13:52:03,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:03,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-02-18 13:52:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210
[2022-02-18 13:52:03,007 INFO L87 Difference]: Start difference. First operand 6059 states and 12618 transitions. Second operand has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 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)
[2022-02-18 13:52:05,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:05,702 INFO L93 Difference]: Finished difference Result 15036 states and 31402 transitions.
[2022-02-18 13:52:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states.
[2022-02-18 13:52:05,702 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:05,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:05,729 INFO L225 Difference]: With dead ends: 15036
[2022-02-18 13:52:05,730 INFO L226 Difference]: Without dead ends: 15036
[2022-02-18 13:52:05,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4516 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1974, Invalid=11136, Unknown=0, NotChecked=0, Total=13110
[2022-02-18 13:52:05,733 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 1075 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 2745 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 6955 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:05,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1075 Valid, 6955 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2745 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2022-02-18 13:52:05,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15036 states.
[2022-02-18 13:52:05,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15036 to 6234.
[2022-02-18 13:52:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.087772785622593) internal successors, (13011), 6233 states have internal predecessors, (13011), 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)
[2022-02-18 13:52:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 13011 transitions.
[2022-02-18 13:52:05,888 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 13011 transitions. Word has length 78
[2022-02-18 13:52:05,888 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:05,888 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 13011 transitions.
[2022-02-18 13:52:05,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 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)
[2022-02-18 13:52:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 13011 transitions.
[2022-02-18 13:52:05,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:05,895 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:05,895 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]
[2022-02-18 13:52:05,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-02-18 13:52:05,895 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:05,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:05,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1389519931, now seen corresponding path program 4 times
[2022-02-18 13:52:05,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:05,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875889781]
[2022-02-18 13:52:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:06,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:06,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875889781]
[2022-02-18 13:52:06,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875889781] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:06,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:06,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:06,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167213924]
[2022-02-18 13:52:06,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:06,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:06,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:06,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:06,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:06,058 INFO L87 Difference]: Start difference. First operand 6234 states and 13011 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:06,253 INFO L93 Difference]: Finished difference Result 8278 states and 17240 transitions.
[2022-02-18 13:52:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:06,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:06,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:06,267 INFO L225 Difference]: With dead ends: 8278
[2022-02-18 13:52:06,267 INFO L226 Difference]: Without dead ends: 8278
[2022-02-18 13:52:06,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:06,268 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 388 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:06,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1065 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:06,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8278 states.
[2022-02-18 13:52:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8278 to 6575.
[2022-02-18 13:52:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6573 states have (on average 2.0827628175870987) internal successors, (13690), 6574 states have internal predecessors, (13690), 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)
[2022-02-18 13:52:06,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 13690 transitions.
[2022-02-18 13:52:06,389 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 13690 transitions. Word has length 78
[2022-02-18 13:52:06,389 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:06,389 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 13690 transitions.
[2022-02-18 13:52:06,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 13690 transitions.
[2022-02-18 13:52:06,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:06,392 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:06,392 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]
[2022-02-18 13:52:06,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-02-18 13:52:06,393 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:06,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash -230993537, now seen corresponding path program 2 times
[2022-02-18 13:52:06,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:06,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083929866]
[2022-02-18 13:52:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:06,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:06,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:06,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083929866]
[2022-02-18 13:52:06,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083929866] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:06,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:06,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-18 13:52:06,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792419231]
[2022-02-18 13:52:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:06,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-18 13:52:06,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:06,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-18 13:52:06,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2022-02-18 13:52:06,599 INFO L87 Difference]: Start difference. First operand 6575 states and 13690 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:09,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:09,252 INFO L93 Difference]: Finished difference Result 32822 states and 68435 transitions.
[2022-02-18 13:52:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states.
[2022-02-18 13:52:09,253 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:09,300 INFO L225 Difference]: With dead ends: 32822
[2022-02-18 13:52:09,300 INFO L226 Difference]: Without dead ends: 32822
[2022-02-18 13:52:09,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4202 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2129, Invalid=9643, Unknown=0, NotChecked=0, Total=11772
[2022-02-18 13:52:09,305 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 1649 mSDsluCounter, 5316 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:09,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1649 Valid, 5995 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2022-02-18 13:52:09,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32822 states.
[2022-02-18 13:52:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32822 to 6832.
[2022-02-18 13:52:09,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 6830 states have (on average 2.0865300146412884) internal successors, (14251), 6831 states have internal predecessors, (14251), 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)
[2022-02-18 13:52:09,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 14251 transitions.
[2022-02-18 13:52:09,547 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 14251 transitions. Word has length 78
[2022-02-18 13:52:09,547 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:09,547 INFO L470 AbstractCegarLoop]: Abstraction has 6832 states and 14251 transitions.
[2022-02-18 13:52:09,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:09,547 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 14251 transitions.
[2022-02-18 13:52:09,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:09,550 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:09,550 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]
[2022-02-18 13:52:09,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-02-18 13:52:09,550 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:09,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1798500039, now seen corresponding path program 5 times
[2022-02-18 13:52:09,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:09,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487241253]
[2022-02-18 13:52:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:09,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:09,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:09,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487241253]
[2022-02-18 13:52:09,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487241253] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:09,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:09,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:09,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133771990]
[2022-02-18 13:52:09,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:09,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:09,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:09,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:09,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:09,647 INFO L87 Difference]: Start difference. First operand 6832 states and 14251 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:09,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:09,856 INFO L93 Difference]: Finished difference Result 13224 states and 27405 transitions.
[2022-02-18 13:52:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:09,873 INFO L225 Difference]: With dead ends: 13224
[2022-02-18 13:52:09,873 INFO L226 Difference]: Without dead ends: 13224
[2022-02-18 13:52:09,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:09,874 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 587 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:09,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 1230 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:09,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13224 states.
[2022-02-18 13:52:09,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13224 to 6881.
[2022-02-18 13:52:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6878 states have (on average 2.0754579819715033) internal successors, (14275), 6880 states have internal predecessors, (14275), 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)
[2022-02-18 13:52:09,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 14275 transitions.
[2022-02-18 13:52:09,987 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 14275 transitions. Word has length 78
[2022-02-18 13:52:09,987 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:09,987 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 14275 transitions.
[2022-02-18 13:52:09,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 14275 transitions.
[2022-02-18 13:52:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:09,991 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:09,991 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]
[2022-02-18 13:52:09,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-02-18 13:52:09,991 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:09,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1210081927, now seen corresponding path program 6 times
[2022-02-18 13:52:09,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:09,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872161963]
[2022-02-18 13:52:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:09,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:10,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:10,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872161963]
[2022-02-18 13:52:10,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872161963] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:10,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:10,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:10,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939494696]
[2022-02-18 13:52:10,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:10,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:10,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:10,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:10,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:10,146 INFO L87 Difference]: Start difference. First operand 6881 states and 14275 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:10,309 INFO L93 Difference]: Finished difference Result 11923 states and 24660 transitions.
[2022-02-18 13:52:10,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:10,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:10,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:10,323 INFO L225 Difference]: With dead ends: 11923
[2022-02-18 13:52:10,323 INFO L226 Difference]: Without dead ends: 11923
[2022-02-18 13:52:10,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:10,324 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 386 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:10,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1048 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:10,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11923 states.
[2022-02-18 13:52:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11923 to 6881.
[2022-02-18 13:52:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6878 states have (on average 2.0754579819715033) internal successors, (14275), 6880 states have internal predecessors, (14275), 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)
[2022-02-18 13:52:10,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 14275 transitions.
[2022-02-18 13:52:10,426 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 14275 transitions. Word has length 78
[2022-02-18 13:52:10,426 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:10,426 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 14275 transitions.
[2022-02-18 13:52:10,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 14275 transitions.
[2022-02-18 13:52:10,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:10,429 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:10,429 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]
[2022-02-18 13:52:10,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-02-18 13:52:10,429 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:10,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1470511061, now seen corresponding path program 3 times
[2022-02-18 13:52:10,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:10,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498542465]
[2022-02-18 13:52:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:10,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:10,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:10,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498542465]
[2022-02-18 13:52:10,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498542465] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:10,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:10,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-18 13:52:10,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364099533]
[2022-02-18 13:52:10,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:10,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-18 13:52:10,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:10,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-18 13:52:10,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2022-02-18 13:52:10,615 INFO L87 Difference]: Start difference. First operand 6881 states and 14275 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:13,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:13,286 INFO L93 Difference]: Finished difference Result 46267 states and 96712 transitions.
[2022-02-18 13:52:13,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states.
[2022-02-18 13:52:13,287 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:13,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:13,360 INFO L225 Difference]: With dead ends: 46267
[2022-02-18 13:52:13,360 INFO L226 Difference]: Without dead ends: 46267
[2022-02-18 13:52:13,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3963 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2137, Invalid=9205, Unknown=0, NotChecked=0, Total=11342
[2022-02-18 13:52:13,363 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 1440 mSDsluCounter, 6551 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 2521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:13,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 7282 Invalid, 2521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2022-02-18 13:52:13,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46267 states.
[2022-02-18 13:52:13,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46267 to 7282.
[2022-02-18 13:52:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7282 states, 7279 states have (on average 2.0839401016623165) internal successors, (15169), 7281 states have internal predecessors, (15169), 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)
[2022-02-18 13:52:13,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7282 states to 7282 states and 15169 transitions.
[2022-02-18 13:52:13,683 INFO L78 Accepts]: Start accepts. Automaton has 7282 states and 15169 transitions. Word has length 78
[2022-02-18 13:52:13,683 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:13,683 INFO L470 AbstractCegarLoop]: Abstraction has 7282 states and 15169 transitions.
[2022-02-18 13:52:13,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 7282 states and 15169 transitions.
[2022-02-18 13:52:13,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:13,687 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:13,687 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]
[2022-02-18 13:52:13,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2022-02-18 13:52:13,687 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:13,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:13,687 INFO L85 PathProgramCache]: Analyzing trace with hash -794962659, now seen corresponding path program 7 times
[2022-02-18 13:52:13,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:13,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898464797]
[2022-02-18 13:52:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:13,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:13,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:13,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:13,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898464797]
[2022-02-18 13:52:13,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898464797] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:13,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:13,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:13,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319612552]
[2022-02-18 13:52:13,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:13,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:13,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:13,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:13,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:13,771 INFO L87 Difference]: Start difference. First operand 7282 states and 15169 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:14,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:14,046 INFO L93 Difference]: Finished difference Result 22479 states and 46559 transitions.
[2022-02-18 13:52:14,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:14,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:14,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:14,088 INFO L225 Difference]: With dead ends: 22479
[2022-02-18 13:52:14,089 INFO L226 Difference]: Without dead ends: 22479
[2022-02-18 13:52:14,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:14,090 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 653 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:14,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 1096 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:14,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22479 states.
[2022-02-18 13:52:14,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22479 to 7257.
[2022-02-18 13:52:14,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7257 states, 7254 states have (on average 2.0818858560794045) internal successors, (15102), 7256 states have internal predecessors, (15102), 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)
[2022-02-18 13:52:14,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7257 states to 7257 states and 15102 transitions.
[2022-02-18 13:52:14,274 INFO L78 Accepts]: Start accepts. Automaton has 7257 states and 15102 transitions. Word has length 78
[2022-02-18 13:52:14,274 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:14,274 INFO L470 AbstractCegarLoop]: Abstraction has 7257 states and 15102 transitions.
[2022-02-18 13:52:14,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:14,274 INFO L276 IsEmpty]: Start isEmpty. Operand 7257 states and 15102 transitions.
[2022-02-18 13:52:14,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:14,277 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:14,277 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]
[2022-02-18 13:52:14,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2022-02-18 13:52:14,278 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:14,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:14,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1383380771, now seen corresponding path program 8 times
[2022-02-18 13:52:14,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:14,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862587728]
[2022-02-18 13:52:14,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:14,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:14,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:14,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862587728]
[2022-02-18 13:52:14,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862587728] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:14,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:14,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:14,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436727133]
[2022-02-18 13:52:14,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:14,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:14,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:14,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:14,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:14,383 INFO L87 Difference]: Start difference. First operand 7257 states and 15102 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:14,569 INFO L93 Difference]: Finished difference Result 17765 states and 36818 transitions.
[2022-02-18 13:52:14,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:14,570 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:14,592 INFO L225 Difference]: With dead ends: 17765
[2022-02-18 13:52:14,592 INFO L226 Difference]: Without dead ends: 17765
[2022-02-18 13:52:14,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:14,593 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 446 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:14,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 1151 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:14,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17765 states.
[2022-02-18 13:52:14,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17765 to 7164.
[2022-02-18 13:52:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7164 states, 7161 states have (on average 2.079318530931434) internal successors, (14890), 7163 states have internal predecessors, (14890), 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)
[2022-02-18 13:52:14,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 14890 transitions.
[2022-02-18 13:52:14,716 INFO L78 Accepts]: Start accepts. Automaton has 7164 states and 14890 transitions. Word has length 78
[2022-02-18 13:52:14,716 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:14,716 INFO L470 AbstractCegarLoop]: Abstraction has 7164 states and 14890 transitions.
[2022-02-18 13:52:14,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:14,717 INFO L276 IsEmpty]: Start isEmpty. Operand 7164 states and 14890 transitions.
[2022-02-18 13:52:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:14,721 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:14,721 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]
[2022-02-18 13:52:14,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-02-18 13:52:14,721 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:14,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:14,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1994881031, now seen corresponding path program 4 times
[2022-02-18 13:52:14,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:14,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735889456]
[2022-02-18 13:52:14,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:14,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:14,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:14,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735889456]
[2022-02-18 13:52:14,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735889456] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:14,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:14,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-18 13:52:14,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156314880]
[2022-02-18 13:52:14,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:14,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-18 13:52:14,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:14,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-18 13:52:14,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240
[2022-02-18 13:52:14,930 INFO L87 Difference]: Start difference. First operand 7164 states and 14890 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:17,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:17,861 INFO L93 Difference]: Finished difference Result 35183 states and 73664 transitions.
[2022-02-18 13:52:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states.
[2022-02-18 13:52:17,861 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:17,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:17,915 INFO L225 Difference]: With dead ends: 35183
[2022-02-18 13:52:17,930 INFO L226 Difference]: Without dead ends: 35183
[2022-02-18 13:52:17,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2865 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1874, Invalid=7246, Unknown=0, NotChecked=0, Total=9120
[2022-02-18 13:52:17,932 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 1287 mSDsluCounter, 5017 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 5753 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:17,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 5753 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2022-02-18 13:52:17,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35183 states.
[2022-02-18 13:52:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35183 to 8219.
[2022-02-18 13:52:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8219 states, 8216 states have (on average 2.0978578383641673) internal successors, (17236), 8218 states have internal predecessors, (17236), 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)
[2022-02-18 13:52:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8219 states to 8219 states and 17236 transitions.
[2022-02-18 13:52:18,193 INFO L78 Accepts]: Start accepts. Automaton has 8219 states and 17236 transitions. Word has length 78
[2022-02-18 13:52:18,193 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:18,193 INFO L470 AbstractCegarLoop]: Abstraction has 8219 states and 17236 transitions.
[2022-02-18 13:52:18,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:18,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8219 states and 17236 transitions.
[2022-02-18 13:52:18,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:18,196 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:18,196 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]
[2022-02-18 13:52:18,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2022-02-18 13:52:18,196 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:18,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:18,196 INFO L85 PathProgramCache]: Analyzing trace with hash 34612545, now seen corresponding path program 9 times
[2022-02-18 13:52:18,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:18,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20482165]
[2022-02-18 13:52:18,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:18,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:18,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:18,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20482165]
[2022-02-18 13:52:18,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20482165] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:18,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:18,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:18,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755386686]
[2022-02-18 13:52:18,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:18,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:18,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:18,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:18,334 INFO L87 Difference]: Start difference. First operand 8219 states and 17236 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:18,485 INFO L93 Difference]: Finished difference Result 17751 states and 36797 transitions.
[2022-02-18 13:52:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:18,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:18,509 INFO L225 Difference]: With dead ends: 17751
[2022-02-18 13:52:18,509 INFO L226 Difference]: Without dead ends: 17751
[2022-02-18 13:52:18,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:18,511 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 524 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:18,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 1261 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:18,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17751 states.
[2022-02-18 13:52:18,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17751 to 8195.
[2022-02-18 13:52:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8195 states, 8192 states have (on average 2.097900390625) internal successors, (17186), 8194 states have internal predecessors, (17186), 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)
[2022-02-18 13:52:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8195 states to 8195 states and 17186 transitions.
[2022-02-18 13:52:18,661 INFO L78 Accepts]: Start accepts. Automaton has 8195 states and 17186 transitions. Word has length 78
[2022-02-18 13:52:18,661 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:18,661 INFO L470 AbstractCegarLoop]: Abstraction has 8195 states and 17186 transitions.
[2022-02-18 13:52:18,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8195 states and 17186 transitions.
[2022-02-18 13:52:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:18,672 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:18,672 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]
[2022-02-18 13:52:18,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2022-02-18 13:52:18,673 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:18,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:18,673 INFO L85 PathProgramCache]: Analyzing trace with hash 642429283, now seen corresponding path program 10 times
[2022-02-18 13:52:18,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:18,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192655113]
[2022-02-18 13:52:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:18,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:18,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:18,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192655113]
[2022-02-18 13:52:18,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192655113] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:18,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:18,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:18,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899311310]
[2022-02-18 13:52:18,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:18,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:18,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:18,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:18,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:18,772 INFO L87 Difference]: Start difference. First operand 8195 states and 17186 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:18,906 INFO L93 Difference]: Finished difference Result 14050 states and 29137 transitions.
[2022-02-18 13:52:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:18,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:18,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:18,924 INFO L225 Difference]: With dead ends: 14050
[2022-02-18 13:52:18,924 INFO L226 Difference]: Without dead ends: 14050
[2022-02-18 13:52:18,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:18,926 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 549 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:18,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 1052 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:18,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14050 states.
[2022-02-18 13:52:19,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14050 to 9098.
[2022-02-18 13:52:19,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9098 states, 9095 states have (on average 2.102363936228697) internal successors, (19121), 9097 states have internal predecessors, (19121), 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)
[2022-02-18 13:52:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9098 states to 9098 states and 19121 transitions.
[2022-02-18 13:52:19,128 INFO L78 Accepts]: Start accepts. Automaton has 9098 states and 19121 transitions. Word has length 78
[2022-02-18 13:52:19,128 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:19,129 INFO L470 AbstractCegarLoop]: Abstraction has 9098 states and 19121 transitions.
[2022-02-18 13:52:19,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:19,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9098 states and 19121 transitions.
[2022-02-18 13:52:19,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:19,132 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:19,132 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]
[2022-02-18 13:52:19,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2022-02-18 13:52:19,132 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:19,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:19,133 INFO L85 PathProgramCache]: Analyzing trace with hash -655223041, now seen corresponding path program 5 times
[2022-02-18 13:52:19,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:19,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660891767]
[2022-02-18 13:52:19,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:19,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:19,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:19,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660891767]
[2022-02-18 13:52:19,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660891767] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:19,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:19,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-18 13:52:19,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607224143]
[2022-02-18 13:52:19,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:19,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-18 13:52:19,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:19,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-18 13:52:19,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2022-02-18 13:52:19,309 INFO L87 Difference]: Start difference. First operand 9098 states and 19121 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:21,768 INFO L93 Difference]: Finished difference Result 42338 states and 88537 transitions.
[2022-02-18 13:52:21,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states.
[2022-02-18 13:52:21,768 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:21,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:21,842 INFO L225 Difference]: With dead ends: 42338
[2022-02-18 13:52:21,842 INFO L226 Difference]: Without dead ends: 42338
[2022-02-18 13:52:21,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3907 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2137, Invalid=9205, Unknown=0, NotChecked=0, Total=11342
[2022-02-18 13:52:21,844 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 1392 mSDsluCounter, 5329 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 6063 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:21,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1392 Valid, 6063 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2022-02-18 13:52:21,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42338 states.
[2022-02-18 13:52:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42338 to 9356.
[2022-02-18 13:52:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9356 states, 9353 states have (on average 2.106382978723404) internal successors, (19701), 9355 states have internal predecessors, (19701), 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)
[2022-02-18 13:52:22,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9356 states to 9356 states and 19701 transitions.
[2022-02-18 13:52:22,227 INFO L78 Accepts]: Start accepts. Automaton has 9356 states and 19701 transitions. Word has length 78
[2022-02-18 13:52:22,227 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:22,227 INFO L470 AbstractCegarLoop]: Abstraction has 9356 states and 19701 transitions.
[2022-02-18 13:52:22,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:22,227 INFO L276 IsEmpty]: Start isEmpty. Operand 9356 states and 19701 transitions.
[2022-02-18 13:52:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:22,230 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:22,230 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]
[2022-02-18 13:52:22,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2022-02-18 13:52:22,230 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:22,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:22,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1374270535, now seen corresponding path program 11 times
[2022-02-18 13:52:22,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:22,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305915556]
[2022-02-18 13:52:22,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:22,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:22,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:22,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:22,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305915556]
[2022-02-18 13:52:22,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305915556] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:22,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:22,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:22,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206091568]
[2022-02-18 13:52:22,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:22,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:22,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:22,333 INFO L87 Difference]: Start difference. First operand 9356 states and 19701 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:22,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:22,617 INFO L93 Difference]: Finished difference Result 19573 states and 40679 transitions.
[2022-02-18 13:52:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:22,617 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:22,652 INFO L225 Difference]: With dead ends: 19573
[2022-02-18 13:52:22,652 INFO L226 Difference]: Without dead ends: 19573
[2022-02-18 13:52:22,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:22,653 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 506 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:22,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 1263 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-18 13:52:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19573 states.
[2022-02-18 13:52:22,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19573 to 9370.
[2022-02-18 13:52:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9370 states, 9367 states have (on average 2.103448275862069) internal successors, (19703), 9369 states have internal predecessors, (19703), 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)
[2022-02-18 13:52:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9370 states to 9370 states and 19703 transitions.
[2022-02-18 13:52:22,823 INFO L78 Accepts]: Start accepts. Automaton has 9370 states and 19703 transitions. Word has length 78
[2022-02-18 13:52:22,823 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:22,823 INFO L470 AbstractCegarLoop]: Abstraction has 9370 states and 19703 transitions.
[2022-02-18 13:52:22,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 9370 states and 19703 transitions.
[2022-02-18 13:52:22,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:22,826 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:22,826 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]
[2022-02-18 13:52:22,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2022-02-18 13:52:22,826 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:22,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:22,827 INFO L85 PathProgramCache]: Analyzing trace with hash 785852423, now seen corresponding path program 12 times
[2022-02-18 13:52:22,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:22,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776035384]
[2022-02-18 13:52:22,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:22,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:22,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:22,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:22,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776035384]
[2022-02-18 13:52:22,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776035384] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:22,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:22,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:22,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672614217]
[2022-02-18 13:52:22,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:22,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:22,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:22,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:22,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:22,922 INFO L87 Difference]: Start difference. First operand 9370 states and 19703 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:23,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:23,179 INFO L93 Difference]: Finished difference Result 13098 states and 27206 transitions.
[2022-02-18 13:52:23,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:23,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:23,197 INFO L225 Difference]: With dead ends: 13098
[2022-02-18 13:52:23,197 INFO L226 Difference]: Without dead ends: 13098
[2022-02-18 13:52:23,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:23,198 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 380 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:23,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 1270 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:23,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13098 states.
[2022-02-18 13:52:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13098 to 9142.
[2022-02-18 13:52:23,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9142 states, 9139 states have (on average 2.0995732574679944) internal successors, (19188), 9141 states have internal predecessors, (19188), 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)
[2022-02-18 13:52:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9142 states to 9142 states and 19188 transitions.
[2022-02-18 13:52:23,319 INFO L78 Accepts]: Start accepts. Automaton has 9142 states and 19188 transitions. Word has length 78
[2022-02-18 13:52:23,319 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:23,320 INFO L470 AbstractCegarLoop]: Abstraction has 9142 states and 19188 transitions.
[2022-02-18 13:52:23,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:23,320 INFO L276 IsEmpty]: Start isEmpty. Operand 9142 states and 19188 transitions.
[2022-02-18 13:52:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:23,322 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:23,322 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]
[2022-02-18 13:52:23,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2022-02-18 13:52:23,323 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:23,323 INFO L85 PathProgramCache]: Analyzing trace with hash 174352163, now seen corresponding path program 6 times
[2022-02-18 13:52:23,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:23,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676597169]
[2022-02-18 13:52:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:23,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:23,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:23,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676597169]
[2022-02-18 13:52:23,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676597169] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:23,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:23,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-18 13:52:23,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241315622]
[2022-02-18 13:52:23,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:23,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-18 13:52:23,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-18 13:52:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240
[2022-02-18 13:52:23,588 INFO L87 Difference]: Start difference. First operand 9142 states and 19188 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:26,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:26,358 INFO L93 Difference]: Finished difference Result 45515 states and 95261 transitions.
[2022-02-18 13:52:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states.
[2022-02-18 13:52:26,359 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:26,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:26,435 INFO L225 Difference]: With dead ends: 45515
[2022-02-18 13:52:26,435 INFO L226 Difference]: Without dead ends: 45515
[2022-02-18 13:52:26,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2801 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1874, Invalid=7246, Unknown=0, NotChecked=0, Total=9120
[2022-02-18 13:52:26,437 INFO L933 BasicCegarLoop]: 778 mSDtfsCounter, 1180 mSDsluCounter, 6158 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:26,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 6936 Invalid, 2457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2022-02-18 13:52:26,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45515 states.
[2022-02-18 13:52:26,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45515 to 9322.
[2022-02-18 13:52:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9319 states have (on average 2.0995815001609617) internal successors, (19566), 9321 states have internal predecessors, (19566), 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)
[2022-02-18 13:52:26,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 19566 transitions.
[2022-02-18 13:52:26,857 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 19566 transitions. Word has length 78
[2022-02-18 13:52:26,858 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:26,858 INFO L470 AbstractCegarLoop]: Abstraction has 9322 states and 19566 transitions.
[2022-02-18 13:52:26,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 19566 transitions.
[2022-02-18 13:52:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:26,862 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:26,862 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]
[2022-02-18 13:52:26,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2022-02-18 13:52:26,862 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:26,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:26,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2091121557, now seen corresponding path program 13 times
[2022-02-18 13:52:26,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:26,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162786325]
[2022-02-18 13:52:26,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:26,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:26,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:26,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162786325]
[2022-02-18 13:52:26,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162786325] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:26,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:26,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:26,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344015644]
[2022-02-18 13:52:26,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:26,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:26,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:26,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:26,988 INFO L87 Difference]: Start difference. First operand 9322 states and 19566 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:27,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:27,187 INFO L93 Difference]: Finished difference Result 23356 states and 48220 transitions.
[2022-02-18 13:52:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:27,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:27,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:27,272 INFO L225 Difference]: With dead ends: 23356
[2022-02-18 13:52:27,272 INFO L226 Difference]: Without dead ends: 23356
[2022-02-18 13:52:27,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:27,272 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 559 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:27,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 1292 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:27,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23356 states.
[2022-02-18 13:52:27,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23356 to 9258.
[2022-02-18 13:52:27,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9258 states, 9255 states have (on average 2.099837925445705) internal successors, (19434), 9257 states have internal predecessors, (19434), 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)
[2022-02-18 13:52:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9258 states to 9258 states and 19434 transitions.
[2022-02-18 13:52:27,556 INFO L78 Accepts]: Start accepts. Automaton has 9258 states and 19434 transitions. Word has length 78
[2022-02-18 13:52:27,556 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:27,556 INFO L470 AbstractCegarLoop]: Abstraction has 9258 states and 19434 transitions.
[2022-02-18 13:52:27,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 9258 states and 19434 transitions.
[2022-02-18 13:52:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:27,559 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:27,559 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]
[2022-02-18 13:52:27,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2022-02-18 13:52:27,559 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:27,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1483304819, now seen corresponding path program 14 times
[2022-02-18 13:52:27,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:27,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355108712]
[2022-02-18 13:52:27,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:27,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:27,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:27,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355108712]
[2022-02-18 13:52:27,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355108712] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:27,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:27,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:27,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34671048]
[2022-02-18 13:52:27,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:27,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:27,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:27,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:27,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:27,659 INFO L87 Difference]: Start difference. First operand 9258 states and 19434 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:27,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:27,870 INFO L93 Difference]: Finished difference Result 18644 states and 38505 transitions.
[2022-02-18 13:52:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:27,897 INFO L225 Difference]: With dead ends: 18644
[2022-02-18 13:52:27,897 INFO L226 Difference]: Without dead ends: 18644
[2022-02-18 13:52:27,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:27,900 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 480 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:27,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1270 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18644 states.
[2022-02-18 13:52:28,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18644 to 8909.
[2022-02-18 13:52:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8909 states, 8906 states have (on average 2.103188861441725) internal successors, (18731), 8908 states have internal predecessors, (18731), 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)
[2022-02-18 13:52:28,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8909 states to 8909 states and 18731 transitions.
[2022-02-18 13:52:28,071 INFO L78 Accepts]: Start accepts. Automaton has 8909 states and 18731 transitions. Word has length 78
[2022-02-18 13:52:28,071 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:28,071 INFO L470 AbstractCegarLoop]: Abstraction has 8909 states and 18731 transitions.
[2022-02-18 13:52:28,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:28,071 INFO L276 IsEmpty]: Start isEmpty. Operand 8909 states and 18731 transitions.
[2022-02-18 13:52:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:28,074 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:28,074 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]
[2022-02-18 13:52:28,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2022-02-18 13:52:28,074 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:28,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:28,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1269523329, now seen corresponding path program 7 times
[2022-02-18 13:52:28,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:28,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524346473]
[2022-02-18 13:52:28,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:28,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:28,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:28,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524346473]
[2022-02-18 13:52:28,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524346473] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:28,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:28,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-02-18 13:52:28,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725530209]
[2022-02-18 13:52:28,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:28,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-02-18 13:52:28,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:28,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-02-18 13:52:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240
[2022-02-18 13:52:28,299 INFO L87 Difference]: Start difference. First operand 8909 states and 18731 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:30,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:30,893 INFO L93 Difference]: Finished difference Result 33119 states and 69705 transitions.
[2022-02-18 13:52:30,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states.
[2022-02-18 13:52:30,893 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:30,947 INFO L225 Difference]: With dead ends: 33119
[2022-02-18 13:52:30,948 INFO L226 Difference]: Without dead ends: 33119
[2022-02-18 13:52:30,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2895 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1905, Invalid=7407, Unknown=0, NotChecked=0, Total=9312
[2022-02-18 13:52:30,950 INFO L933 BasicCegarLoop]: 751 mSDtfsCounter, 1159 mSDsluCounter, 5643 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 6394 SdHoareTripleChecker+Invalid, 2347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:30,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 6394 Invalid, 2347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2022-02-18 13:52:31,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33119 states.
[2022-02-18 13:52:31,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33119 to 7895.
[2022-02-18 13:52:31,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7895 states, 7892 states have (on average 2.087430309173847) internal successors, (16474), 7894 states have internal predecessors, (16474), 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)
[2022-02-18 13:52:31,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 16474 transitions.
[2022-02-18 13:52:31,231 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 16474 transitions. Word has length 78
[2022-02-18 13:52:31,231 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:31,231 INFO L470 AbstractCegarLoop]: Abstraction has 7895 states and 16474 transitions.
[2022-02-18 13:52:31,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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)
[2022-02-18 13:52:31,232 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 16474 transitions.
[2022-02-18 13:52:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:31,234 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:31,234 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]
[2022-02-18 13:52:31,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2022-02-18 13:52:31,234 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:31,235 INFO L85 PathProgramCache]: Analyzing trace with hash 759970247, now seen corresponding path program 15 times
[2022-02-18 13:52:31,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:31,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423370143]
[2022-02-18 13:52:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:31,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:31,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:31,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:31,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423370143]
[2022-02-18 13:52:31,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423370143] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:31,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:31,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:31,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330614892]
[2022-02-18 13:52:31,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:31,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:31,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:31,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:31,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:31,316 INFO L87 Difference]: Start difference. First operand 7895 states and 16474 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:31,513 INFO L93 Difference]: Finished difference Result 15260 states and 31594 transitions.
[2022-02-18 13:52:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:31,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:31,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:31,533 INFO L225 Difference]: With dead ends: 15260
[2022-02-18 13:52:31,534 INFO L226 Difference]: Without dead ends: 15260
[2022-02-18 13:52:31,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:31,537 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 480 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:31,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1137 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:31,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15260 states.
[2022-02-18 13:52:31,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15260 to 7887.
[2022-02-18 13:52:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7887 states, 7884 states have (on average 2.084348046676814) internal successors, (16433), 7886 states have internal predecessors, (16433), 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)
[2022-02-18 13:52:31,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 16433 transitions.
[2022-02-18 13:52:31,662 INFO L78 Accepts]: Start accepts. Automaton has 7887 states and 16433 transitions. Word has length 78
[2022-02-18 13:52:31,662 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:31,662 INFO L470 AbstractCegarLoop]: Abstraction has 7887 states and 16433 transitions.
[2022-02-18 13:52:31,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:31,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7887 states and 16433 transitions.
[2022-02-18 13:52:31,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:31,665 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:31,665 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]
[2022-02-18 13:52:31,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2022-02-18 13:52:31,665 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:31,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1367786985, now seen corresponding path program 16 times
[2022-02-18 13:52:31,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:31,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764904623]
[2022-02-18 13:52:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:31,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:31,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:31,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764904623]
[2022-02-18 13:52:31,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764904623] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:31,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:31,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:31,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948051094]
[2022-02-18 13:52:31,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:31,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:31,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:31,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:31,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:31,770 INFO L87 Difference]: Start difference. First operand 7887 states and 16433 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:31,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:31,934 INFO L93 Difference]: Finished difference Result 15277 states and 31545 transitions.
[2022-02-18 13:52:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:31,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:31,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:31,959 INFO L225 Difference]: With dead ends: 15277
[2022-02-18 13:52:31,959 INFO L226 Difference]: Without dead ends: 15277
[2022-02-18 13:52:31,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:31,960 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 419 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:31,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 977 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:31,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15277 states.
[2022-02-18 13:52:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15277 to 7769.
[2022-02-18 13:52:32,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7769 states, 7766 states have (on average 2.087818696883853) internal successors, (16214), 7768 states have internal predecessors, (16214), 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)
[2022-02-18 13:52:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 16214 transitions.
[2022-02-18 13:52:32,082 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 16214 transitions. Word has length 78
[2022-02-18 13:52:32,083 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:32,083 INFO L470 AbstractCegarLoop]: Abstraction has 7769 states and 16214 transitions.
[2022-02-18 13:52:32,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:32,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 16214 transitions.
[2022-02-18 13:52:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-02-18 13:52:32,085 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:32,085 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]
[2022-02-18 13:52:32,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2022-02-18 13:52:32,086 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1877525063, now seen corresponding path program 17 times
[2022-02-18 13:52:32,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:32,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722996566]
[2022-02-18 13:52:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:32,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:32,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:32,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722996566]
[2022-02-18 13:52:32,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722996566] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:32,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:32,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-02-18 13:52:32,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385292839]
[2022-02-18 13:52:32,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:32,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-02-18 13:52:32,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:32,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-02-18 13:52:32,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2022-02-18 13:52:32,175 INFO L87 Difference]: Start difference. First operand 7769 states and 16214 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:32,322 INFO L93 Difference]: Finished difference Result 4518 states and 9036 transitions.
[2022-02-18 13:52:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-02-18 13:52:32,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78
[2022-02-18 13:52:32,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:32,327 INFO L225 Difference]: With dead ends: 4518
[2022-02-18 13:52:32,327 INFO L226 Difference]: Without dead ends: 4518
[2022-02-18 13:52:32,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2022-02-18 13:52:32,327 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 369 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:32,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 884 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:52:32,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states.
[2022-02-18 13:52:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 3350.
[2022-02-18 13:52:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.0074671445639187) internal successors, (6721), 3349 states have internal predecessors, (6721), 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)
[2022-02-18 13:52:32,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 6721 transitions.
[2022-02-18 13:52:32,378 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 6721 transitions. Word has length 78
[2022-02-18 13:52:32,378 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:32,378 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 6721 transitions.
[2022-02-18 13:52:32,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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)
[2022-02-18 13:52:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 6721 transitions.
[2022-02-18 13:52:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:32,381 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:32,381 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]
[2022-02-18 13:52:32,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2022-02-18 13:52:32,381 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash 185879758, now seen corresponding path program 1 times
[2022-02-18 13:52:32,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:32,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041935924]
[2022-02-18 13:52:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:32,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:32,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:32,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041935924]
[2022-02-18 13:52:32,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041935924] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:32,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:32,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:32,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026278030]
[2022-02-18 13:52:32,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:32,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:32,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:32,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:32,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:32,597 INFO L87 Difference]: Start difference. First operand 3350 states and 6721 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:33,796 INFO L93 Difference]: Finished difference Result 5553 states and 11161 transitions.
[2022-02-18 13:52:33,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-18 13:52:33,797 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:33,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:33,803 INFO L225 Difference]: With dead ends: 5553
[2022-02-18 13:52:33,803 INFO L226 Difference]: Without dead ends: 5553
[2022-02-18 13:52:33,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=581, Invalid=2499, Unknown=0, NotChecked=0, Total=3080
[2022-02-18 13:52:33,804 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 1602 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:33,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 3268 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-02-18 13:52:33,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states.
[2022-02-18 13:52:33,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 3355.
[2022-02-18 13:52:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3353 states have (on average 2.0071577691619447) internal successors, (6730), 3354 states have internal predecessors, (6730), 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)
[2022-02-18 13:52:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 6730 transitions.
[2022-02-18 13:52:33,846 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 6730 transitions. Word has length 81
[2022-02-18 13:52:33,846 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:33,846 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 6730 transitions.
[2022-02-18 13:52:33,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:33,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 6730 transitions.
[2022-02-18 13:52:33,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:33,849 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:33,849 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]
[2022-02-18 13:52:33,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2022-02-18 13:52:33,849 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:33,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:33,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1324480462, now seen corresponding path program 2 times
[2022-02-18 13:52:33,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:33,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903918892]
[2022-02-18 13:52:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:34,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:34,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:34,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903918892]
[2022-02-18 13:52:34,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903918892] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:34,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:34,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:34,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097120187]
[2022-02-18 13:52:34,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:34,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:34,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:34,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:34,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:34,113 INFO L87 Difference]: Start difference. First operand 3355 states and 6730 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:35,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:35,183 INFO L93 Difference]: Finished difference Result 6169 states and 12402 transitions.
[2022-02-18 13:52:35,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-18 13:52:35,183 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:35,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:35,190 INFO L225 Difference]: With dead ends: 6169
[2022-02-18 13:52:35,191 INFO L226 Difference]: Without dead ends: 6169
[2022-02-18 13:52:35,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=563, Invalid=2517, Unknown=0, NotChecked=0, Total=3080
[2022-02-18 13:52:35,197 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1628 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:35,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1628 Valid, 3633 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-02-18 13:52:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states.
[2022-02-18 13:52:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 3406.
[2022-02-18 13:52:35,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.0079318448883665) internal successors, (6835), 3405 states have internal predecessors, (6835), 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)
[2022-02-18 13:52:35,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 6835 transitions.
[2022-02-18 13:52:35,242 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 6835 transitions. Word has length 81
[2022-02-18 13:52:35,242 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:35,242 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 6835 transitions.
[2022-02-18 13:52:35,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 6835 transitions.
[2022-02-18 13:52:35,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:35,244 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:35,244 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]
[2022-02-18 13:52:35,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2022-02-18 13:52:35,245 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:35,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:35,246 INFO L85 PathProgramCache]: Analyzing trace with hash -178500404, now seen corresponding path program 3 times
[2022-02-18 13:52:35,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:35,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115472555]
[2022-02-18 13:52:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:35,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:35,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:35,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:35,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115472555]
[2022-02-18 13:52:35,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115472555] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:35,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:35,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:35,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109722621]
[2022-02-18 13:52:35,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:35,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:35,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:35,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:35,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:35,481 INFO L87 Difference]: Start difference. First operand 3406 states and 6835 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:36,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:36,950 INFO L93 Difference]: Finished difference Result 5606 states and 11266 transitions.
[2022-02-18 13:52:36,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-18 13:52:36,952 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:36,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:36,958 INFO L225 Difference]: With dead ends: 5606
[2022-02-18 13:52:36,959 INFO L226 Difference]: Without dead ends: 5606
[2022-02-18 13:52:36,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=641, Invalid=2781, Unknown=0, NotChecked=0, Total=3422
[2022-02-18 13:52:36,959 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1300 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:36,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 3786 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:36,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states.
[2022-02-18 13:52:36,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 3406.
[2022-02-18 13:52:36,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3404 states have (on average 2.0079318448883665) internal successors, (6835), 3405 states have internal predecessors, (6835), 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)
[2022-02-18 13:52:36,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 6835 transitions.
[2022-02-18 13:52:36,997 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 6835 transitions. Word has length 81
[2022-02-18 13:52:36,997 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:36,997 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 6835 transitions.
[2022-02-18 13:52:36,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 6835 transitions.
[2022-02-18 13:52:36,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:36,999 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:36,999 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]
[2022-02-18 13:52:37,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2022-02-18 13:52:37,000 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:37,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:37,000 INFO L85 PathProgramCache]: Analyzing trace with hash 164150042, now seen corresponding path program 4 times
[2022-02-18 13:52:37,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:37,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759454898]
[2022-02-18 13:52:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:37,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:37,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:37,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759454898]
[2022-02-18 13:52:37,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759454898] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:37,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:37,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:37,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223442289]
[2022-02-18 13:52:37,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:37,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:37,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:37,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:37,293 INFO L87 Difference]: Start difference. First operand 3406 states and 6835 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:38,856 INFO L93 Difference]: Finished difference Result 6287 states and 12618 transitions.
[2022-02-18 13:52:38,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states.
[2022-02-18 13:52:38,857 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:38,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:38,866 INFO L225 Difference]: With dead ends: 6287
[2022-02-18 13:52:38,866 INFO L226 Difference]: Without dead ends: 6287
[2022-02-18 13:52:38,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=680, Invalid=2626, Unknown=0, NotChecked=0, Total=3306
[2022-02-18 13:52:38,868 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 2000 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:38,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2000 Valid, 3735 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6287 states.
[2022-02-18 13:52:38,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6287 to 3436.
[2022-02-18 13:52:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 3434 states have (on average 2.006406523005242) internal successors, (6890), 3435 states have internal predecessors, (6890), 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)
[2022-02-18 13:52:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 6890 transitions.
[2022-02-18 13:52:38,909 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 6890 transitions. Word has length 81
[2022-02-18 13:52:38,909 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:38,909 INFO L470 AbstractCegarLoop]: Abstraction has 3436 states and 6890 transitions.
[2022-02-18 13:52:38,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:38,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 6890 transitions.
[2022-02-18 13:52:38,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:38,911 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:38,911 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]
[2022-02-18 13:52:38,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2022-02-18 13:52:38,912 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:38,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:38,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1025934648, now seen corresponding path program 5 times
[2022-02-18 13:52:38,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:38,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077577137]
[2022-02-18 13:52:38,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:38,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:39,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:39,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077577137]
[2022-02-18 13:52:39,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077577137] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:39,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:39,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:39,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891335179]
[2022-02-18 13:52:39,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:39,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:39,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:39,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:39,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:39,147 INFO L87 Difference]: Start difference. First operand 3436 states and 6890 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:40,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:40,158 INFO L93 Difference]: Finished difference Result 5995 states and 11999 transitions.
[2022-02-18 13:52:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-18 13:52:40,158 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:40,165 INFO L225 Difference]: With dead ends: 5995
[2022-02-18 13:52:40,165 INFO L226 Difference]: Without dead ends: 5995
[2022-02-18 13:52:40,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=623, Invalid=2569, Unknown=0, NotChecked=0, Total=3192
[2022-02-18 13:52:40,166 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 1578 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:40,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1578 Valid, 3409 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-02-18 13:52:40,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states.
[2022-02-18 13:52:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 3439.
[2022-02-18 13:52:40,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3437 states have (on average 2.0064009310445154) internal successors, (6896), 3438 states have internal predecessors, (6896), 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)
[2022-02-18 13:52:40,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6896 transitions.
[2022-02-18 13:52:40,206 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6896 transitions. Word has length 81
[2022-02-18 13:52:40,206 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:40,206 INFO L470 AbstractCegarLoop]: Abstraction has 3439 states and 6896 transitions.
[2022-02-18 13:52:40,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6896 transitions.
[2022-02-18 13:52:40,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:40,208 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:40,208 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]
[2022-02-18 13:52:40,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2022-02-18 13:52:40,209 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:40,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2130431944, now seen corresponding path program 6 times
[2022-02-18 13:52:40,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:40,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580698542]
[2022-02-18 13:52:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:40,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:40,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:40,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580698542]
[2022-02-18 13:52:40,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580698542] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:40,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:40,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:40,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620451549]
[2022-02-18 13:52:40,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:40,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:40,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:40,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:40,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:40,460 INFO L87 Difference]: Start difference. First operand 3439 states and 6896 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:41,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:41,750 INFO L93 Difference]: Finished difference Result 6444 states and 12922 transitions.
[2022-02-18 13:52:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states.
[2022-02-18 13:52:41,751 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:41,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:41,758 INFO L225 Difference]: With dead ends: 6444
[2022-02-18 13:52:41,758 INFO L226 Difference]: Without dead ends: 6444
[2022-02-18 13:52:41,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=598, Invalid=2482, Unknown=0, NotChecked=0, Total=3080
[2022-02-18 13:52:41,759 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 2089 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:41,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2089 Valid, 3033 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:41,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6444 states.
[2022-02-18 13:52:41,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6444 to 3442.
[2022-02-18 13:52:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3440 states have (on average 2.0063953488372093) internal successors, (6902), 3441 states have internal predecessors, (6902), 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)
[2022-02-18 13:52:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 6902 transitions.
[2022-02-18 13:52:41,798 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 6902 transitions. Word has length 81
[2022-02-18 13:52:41,798 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:41,798 INFO L470 AbstractCegarLoop]: Abstraction has 3442 states and 6902 transitions.
[2022-02-18 13:52:41,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:41,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 6902 transitions.
[2022-02-18 13:52:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:41,800 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:41,800 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]
[2022-02-18 13:52:41,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2022-02-18 13:52:41,800 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:41,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:41,801 INFO L85 PathProgramCache]: Analyzing trace with hash 661554486, now seen corresponding path program 7 times
[2022-02-18 13:52:41,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:41,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891780141]
[2022-02-18 13:52:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:41,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:42,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:42,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:42,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891780141]
[2022-02-18 13:52:42,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891780141] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:42,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:42,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:42,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915335871]
[2022-02-18 13:52:42,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:42,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:42,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:42,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:42,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:42,034 INFO L87 Difference]: Start difference. First operand 3442 states and 6902 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:43,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:43,695 INFO L93 Difference]: Finished difference Result 6055 states and 12124 transitions.
[2022-02-18 13:52:43,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-18 13:52:43,695 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:43,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:43,701 INFO L225 Difference]: With dead ends: 6055
[2022-02-18 13:52:43,701 INFO L226 Difference]: Without dead ends: 6055
[2022-02-18 13:52:43,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=670, Invalid=2752, Unknown=0, NotChecked=0, Total=3422
[2022-02-18 13:52:43,702 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 1993 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 3441 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:43,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 3441 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:43,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states.
[2022-02-18 13:52:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 3436.
[2022-02-18 13:52:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 3434 states have (on average 2.006406523005242) internal successors, (6890), 3435 states have internal predecessors, (6890), 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)
[2022-02-18 13:52:43,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 6890 transitions.
[2022-02-18 13:52:43,767 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 6890 transitions. Word has length 81
[2022-02-18 13:52:43,767 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:43,767 INFO L470 AbstractCegarLoop]: Abstraction has 3436 states and 6890 transitions.
[2022-02-18 13:52:43,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 6890 transitions.
[2022-02-18 13:52:43,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:43,769 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:43,769 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]
[2022-02-18 13:52:43,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2022-02-18 13:52:43,770 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:43,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:43,770 INFO L85 PathProgramCache]: Analyzing trace with hash 475759382, now seen corresponding path program 8 times
[2022-02-18 13:52:43,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:43,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146835121]
[2022-02-18 13:52:43,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:43,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:44,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:44,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146835121]
[2022-02-18 13:52:44,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146835121] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:44,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:44,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:44,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753923276]
[2022-02-18 13:52:44,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:44,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:44,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:44,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:44,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:44,032 INFO L87 Difference]: Start difference. First operand 3436 states and 6890 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:45,158 INFO L93 Difference]: Finished difference Result 5842 states and 11611 transitions.
[2022-02-18 13:52:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-02-18 13:52:45,158 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:45,164 INFO L225 Difference]: With dead ends: 5842
[2022-02-18 13:52:45,164 INFO L226 Difference]: Without dead ends: 5842
[2022-02-18 13:52:45,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=527, Invalid=2023, Unknown=0, NotChecked=0, Total=2550
[2022-02-18 13:52:45,165 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 1513 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:45,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 3642 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5842 states.
[2022-02-18 13:52:45,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5842 to 3463.
[2022-02-18 13:52:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3461 states have (on average 2.0063565443513434) internal successors, (6944), 3462 states have internal predecessors, (6944), 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)
[2022-02-18 13:52:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 6944 transitions.
[2022-02-18 13:52:45,205 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 6944 transitions. Word has length 81
[2022-02-18 13:52:45,205 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:45,205 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 6944 transitions.
[2022-02-18 13:52:45,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 6944 transitions.
[2022-02-18 13:52:45,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:45,207 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:45,208 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]
[2022-02-18 13:52:45,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2022-02-18 13:52:45,208 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:45,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1983120214, now seen corresponding path program 9 times
[2022-02-18 13:52:45,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:45,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797912801]
[2022-02-18 13:52:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:45,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:45,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:45,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797912801]
[2022-02-18 13:52:45,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797912801] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:45,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:45,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:45,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469524269]
[2022-02-18 13:52:45,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:45,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:45,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:45,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:45,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:45,470 INFO L87 Difference]: Start difference. First operand 3463 states and 6944 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:46,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:46,934 INFO L93 Difference]: Finished difference Result 5620 states and 11195 transitions.
[2022-02-18 13:52:46,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2022-02-18 13:52:46,934 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:46,940 INFO L225 Difference]: With dead ends: 5620
[2022-02-18 13:52:46,940 INFO L226 Difference]: Without dead ends: 5620
[2022-02-18 13:52:46,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=552, Invalid=2310, Unknown=0, NotChecked=0, Total=2862
[2022-02-18 13:52:46,941 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 1547 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:46,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 3490 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:46,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states.
[2022-02-18 13:52:46,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 3466.
[2022-02-18 13:52:46,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3466 states, 3464 states have (on average 2.00635103926097) internal successors, (6950), 3465 states have internal predecessors, (6950), 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)
[2022-02-18 13:52:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 6950 transitions.
[2022-02-18 13:52:46,978 INFO L78 Accepts]: Start accepts. Automaton has 3466 states and 6950 transitions. Word has length 81
[2022-02-18 13:52:46,978 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:46,978 INFO L470 AbstractCegarLoop]: Abstraction has 3466 states and 6950 transitions.
[2022-02-18 13:52:46,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3466 states and 6950 transitions.
[2022-02-18 13:52:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:46,980 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:46,981 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]
[2022-02-18 13:52:46,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2022-02-18 13:52:46,981 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:46,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:46,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1173246378, now seen corresponding path program 10 times
[2022-02-18 13:52:46,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:46,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710728368]
[2022-02-18 13:52:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:46,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:47,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:47,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:47,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710728368]
[2022-02-18 13:52:47,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710728368] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:47,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:47,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:47,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906843657]
[2022-02-18 13:52:47,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:47,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:47,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:47,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:47,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:47,214 INFO L87 Difference]: Start difference. First operand 3466 states and 6950 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:48,517 INFO L93 Difference]: Finished difference Result 6725 states and 13452 transitions.
[2022-02-18 13:52:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-18 13:52:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:48,526 INFO L225 Difference]: With dead ends: 6725
[2022-02-18 13:52:48,527 INFO L226 Difference]: Without dead ends: 6725
[2022-02-18 13:52:48,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=590, Invalid=2602, Unknown=0, NotChecked=0, Total=3192
[2022-02-18 13:52:48,528 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1899 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:48,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 3722 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6725 states.
[2022-02-18 13:52:48,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6725 to 3469.
[2022-02-18 13:52:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3469 states, 3467 states have (on average 2.0063455436977216) internal successors, (6956), 3468 states have internal predecessors, (6956), 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)
[2022-02-18 13:52:48,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3469 states to 3469 states and 6956 transitions.
[2022-02-18 13:52:48,576 INFO L78 Accepts]: Start accepts. Automaton has 3469 states and 6956 transitions. Word has length 81
[2022-02-18 13:52:48,577 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:48,577 INFO L470 AbstractCegarLoop]: Abstraction has 3469 states and 6956 transitions.
[2022-02-18 13:52:48,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:48,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3469 states and 6956 transitions.
[2022-02-18 13:52:48,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:48,579 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:48,579 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]
[2022-02-18 13:52:48,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2022-02-18 13:52:48,579 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:48,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:48,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1618740052, now seen corresponding path program 11 times
[2022-02-18 13:52:48,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:48,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107969811]
[2022-02-18 13:52:48,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:48,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:48,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:48,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107969811]
[2022-02-18 13:52:48,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107969811] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:48,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:48,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:48,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629806340]
[2022-02-18 13:52:48,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:48,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:48,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:48,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:48,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:48,827 INFO L87 Difference]: Start difference. First operand 3469 states and 6956 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:50,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:50,285 INFO L93 Difference]: Finished difference Result 6664 states and 13326 transitions.
[2022-02-18 13:52:50,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states.
[2022-02-18 13:52:50,285 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:50,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:50,300 INFO L225 Difference]: With dead ends: 6664
[2022-02-18 13:52:50,300 INFO L226 Difference]: Without dead ends: 6664
[2022-02-18 13:52:50,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=660, Invalid=2880, Unknown=0, NotChecked=0, Total=3540
[2022-02-18 13:52:50,312 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1841 mSDsluCounter, 3409 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 3731 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:50,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 3731 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:50,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6664 states.
[2022-02-18 13:52:50,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6664 to 3445.
[2022-02-18 13:52:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3443 states have (on average 2.0063897763578273) internal successors, (6908), 3444 states have internal predecessors, (6908), 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)
[2022-02-18 13:52:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 6908 transitions.
[2022-02-18 13:52:50,369 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 6908 transitions. Word has length 81
[2022-02-18 13:52:50,369 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:50,370 INFO L470 AbstractCegarLoop]: Abstraction has 3445 states and 6908 transitions.
[2022-02-18 13:52:50,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:50,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 6908 transitions.
[2022-02-18 13:52:50,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:50,372 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:50,372 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]
[2022-02-18 13:52:50,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2022-02-18 13:52:50,372 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:50,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1108840562, now seen corresponding path program 12 times
[2022-02-18 13:52:50,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:50,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983867633]
[2022-02-18 13:52:50,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:50,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:50,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:50,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983867633]
[2022-02-18 13:52:50,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983867633] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:50,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:50,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:50,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137184438]
[2022-02-18 13:52:50,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:50,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:50,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:50,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:50,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:50,657 INFO L87 Difference]: Start difference. First operand 3445 states and 6908 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:51,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:51,603 INFO L93 Difference]: Finished difference Result 5448 states and 10881 transitions.
[2022-02-18 13:52:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states.
[2022-02-18 13:52:51,603 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:51,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:51,608 INFO L225 Difference]: With dead ends: 5448
[2022-02-18 13:52:51,608 INFO L226 Difference]: Without dead ends: 5448
[2022-02-18 13:52:51,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=500, Invalid=1950, Unknown=0, NotChecked=0, Total=2450
[2022-02-18 13:52:51,611 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 1251 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:51,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 3436 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-02-18 13:52:51,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states.
[2022-02-18 13:52:51,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 3451.
[2022-02-18 13:52:51,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 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)
[2022-02-18 13:52:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions.
[2022-02-18 13:52:51,647 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81
[2022-02-18 13:52:51,648 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:51,648 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions.
[2022-02-18 13:52:51,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:51,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions.
[2022-02-18 13:52:51,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:51,649 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:51,649 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]
[2022-02-18 13:52:51,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2022-02-18 13:52:51,650 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:51,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:51,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2023906220, now seen corresponding path program 13 times
[2022-02-18 13:52:51,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:51,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083000728]
[2022-02-18 13:52:51,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:51,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:51,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:51,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083000728]
[2022-02-18 13:52:51,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083000728] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:51,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:51,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:51,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683458961]
[2022-02-18 13:52:51,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:51,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:51,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:51,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:51,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:51,861 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:52,882 INFO L93 Difference]: Finished difference Result 5812 states and 11578 transitions.
[2022-02-18 13:52:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-02-18 13:52:52,883 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:52,889 INFO L225 Difference]: With dead ends: 5812
[2022-02-18 13:52:52,890 INFO L226 Difference]: Without dead ends: 5812
[2022-02-18 13:52:52,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550
[2022-02-18 13:52:52,890 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 1375 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:52,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 3289 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:52,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5812 states.
[2022-02-18 13:52:52,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5812 to 3451.
[2022-02-18 13:52:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 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)
[2022-02-18 13:52:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions.
[2022-02-18 13:52:52,934 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81
[2022-02-18 13:52:52,934 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:52,934 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions.
[2022-02-18 13:52:52,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:52,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions.
[2022-02-18 13:52:52,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:52,936 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:52,936 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]
[2022-02-18 13:52:52,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2022-02-18 13:52:52,936 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:52,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:52,937 INFO L85 PathProgramCache]: Analyzing trace with hash -763700244, now seen corresponding path program 14 times
[2022-02-18 13:52:52,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:52,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625881515]
[2022-02-18 13:52:52,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:52,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:53,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:53,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625881515]
[2022-02-18 13:52:53,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625881515] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:53,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:53,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:53,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147226131]
[2022-02-18 13:52:53,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:53,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:53,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:53,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:53,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:53,186 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:54,525 INFO L93 Difference]: Finished difference Result 5569 states and 11128 transitions.
[2022-02-18 13:52:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2022-02-18 13:52:54,525 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:54,531 INFO L225 Difference]: With dead ends: 5569
[2022-02-18 13:52:54,531 INFO L226 Difference]: Without dead ends: 5569
[2022-02-18 13:52:54,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=549, Invalid=2313, Unknown=0, NotChecked=0, Total=2862
[2022-02-18 13:52:54,532 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 1630 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:54,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1630 Valid, 2801 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:54,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states.
[2022-02-18 13:52:54,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 3451.
[2022-02-18 13:52:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3449 states have (on average 2.0063786604812988) internal successors, (6920), 3450 states have internal predecessors, (6920), 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)
[2022-02-18 13:52:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 6920 transitions.
[2022-02-18 13:52:54,570 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 6920 transitions. Word has length 81
[2022-02-18 13:52:54,570 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:54,570 INFO L470 AbstractCegarLoop]: Abstraction has 3451 states and 6920 transitions.
[2022-02-18 13:52:54,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:54,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 6920 transitions.
[2022-02-18 13:52:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:54,571 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:54,572 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]
[2022-02-18 13:52:54,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2022-02-18 13:52:54,572 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:54,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash 374900460, now seen corresponding path program 15 times
[2022-02-18 13:52:54,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:54,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893616600]
[2022-02-18 13:52:54,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:54,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:54,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:54,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893616600]
[2022-02-18 13:52:54,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893616600] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:54,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:54,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:54,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112976537]
[2022-02-18 13:52:54,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:54,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:54,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:54,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:54,796 INFO L87 Difference]: Start difference. First operand 3451 states and 6920 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:56,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:56,208 INFO L93 Difference]: Finished difference Result 6669 states and 13376 transitions.
[2022-02-18 13:52:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-18 13:52:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:56,216 INFO L225 Difference]: With dead ends: 6669
[2022-02-18 13:52:56,216 INFO L226 Difference]: Without dead ends: 6669
[2022-02-18 13:52:56,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=586, Invalid=2606, Unknown=0, NotChecked=0, Total=3192
[2022-02-18 13:52:56,217 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1659 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:56,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1659 Valid, 3540 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:52:56,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6669 states.
[2022-02-18 13:52:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6669 to 3445.
[2022-02-18 13:52:56,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3443 states have (on average 2.0063897763578273) internal successors, (6908), 3444 states have internal predecessors, (6908), 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)
[2022-02-18 13:52:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 6908 transitions.
[2022-02-18 13:52:56,257 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 6908 transitions. Word has length 81
[2022-02-18 13:52:56,257 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:56,257 INFO L470 AbstractCegarLoop]: Abstraction has 3445 states and 6908 transitions.
[2022-02-18 13:52:56,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:56,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 6908 transitions.
[2022-02-18 13:52:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:56,259 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:56,259 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]
[2022-02-18 13:52:56,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2022-02-18 13:52:56,259 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:56,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:56,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1128080406, now seen corresponding path program 16 times
[2022-02-18 13:52:56,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:56,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142515650]
[2022-02-18 13:52:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:56,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:56,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:56,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142515650]
[2022-02-18 13:52:56,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142515650] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:56,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:56,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:56,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066150406]
[2022-02-18 13:52:56,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:56,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:56,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:56,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:56,462 INFO L87 Difference]: Start difference. First operand 3445 states and 6908 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:57,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:57,499 INFO L93 Difference]: Finished difference Result 6608 states and 13250 transitions.
[2022-02-18 13:52:57,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states.
[2022-02-18 13:52:57,499 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:57,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:57,506 INFO L225 Difference]: With dead ends: 6608
[2022-02-18 13:52:57,507 INFO L226 Difference]: Without dead ends: 6608
[2022-02-18 13:52:57,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=657, Invalid=2883, Unknown=0, NotChecked=0, Total=3540
[2022-02-18 13:52:57,507 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 1680 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:57,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1680 Valid, 3877 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-02-18 13:52:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states.
[2022-02-18 13:52:57,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 3421.
[2022-02-18 13:52:57,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3419 states have (on average 2.0064346300087745) internal successors, (6860), 3420 states have internal predecessors, (6860), 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)
[2022-02-18 13:52:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 6860 transitions.
[2022-02-18 13:52:57,547 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 6860 transitions. Word has length 81
[2022-02-18 13:52:57,547 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:57,547 INFO L470 AbstractCegarLoop]: Abstraction has 3421 states and 6860 transitions.
[2022-02-18 13:52:57,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:57,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 6860 transitions.
[2022-02-18 13:52:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:57,549 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:57,549 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]
[2022-02-18 13:52:57,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2022-02-18 13:52:57,549 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:57,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:57,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1637979896, now seen corresponding path program 17 times
[2022-02-18 13:52:57,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:57,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752994646]
[2022-02-18 13:52:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:57,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:57,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:57,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752994646]
[2022-02-18 13:52:57,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752994646] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:57,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:57,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:57,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427609682]
[2022-02-18 13:52:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:57,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:57,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:57,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:57,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:57,786 INFO L87 Difference]: Start difference. First operand 3421 states and 6860 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:52:59,137 INFO L93 Difference]: Finished difference Result 6000 states and 11941 transitions.
[2022-02-18 13:52:59,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-02-18 13:52:59,137 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:52:59,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:52:59,144 INFO L225 Difference]: With dead ends: 6000
[2022-02-18 13:52:59,144 INFO L226 Difference]: Without dead ends: 6000
[2022-02-18 13:52:59,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550
[2022-02-18 13:52:59,144 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1324 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-18 13:52:59,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 3592 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-02-18 13:52:59,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states.
[2022-02-18 13:52:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 3412.
[2022-02-18 13:52:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.0064516129032257) internal successors, (6842), 3411 states have internal predecessors, (6842), 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)
[2022-02-18 13:52:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 6842 transitions.
[2022-02-18 13:52:59,181 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 6842 transitions. Word has length 81
[2022-02-18 13:52:59,181 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:52:59,181 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 6842 transitions.
[2022-02-18 13:52:59,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:52:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 6842 transitions.
[2022-02-18 13:52:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2022-02-18 13:52:59,183 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:52:59,183 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]
[2022-02-18 13:52:59,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2022-02-18 13:52:59,183 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:52:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:52:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2035292628, now seen corresponding path program 18 times
[2022-02-18 13:52:59,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:52:59,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073021234]
[2022-02-18 13:52:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:52:59,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:52:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:52:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:52:59,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:52:59,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073021234]
[2022-02-18 13:52:59,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073021234] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:52:59,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:52:59,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2022-02-18 13:52:59,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629421581]
[2022-02-18 13:52:59,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:52:59,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-02-18 13:52:59,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:52:59,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-02-18 13:52:59,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420
[2022-02-18 13:52:59,404 INFO L87 Difference]: Start difference. First operand 3412 states and 6842 transitions. Second operand has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:53:00,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:00,622 INFO L93 Difference]: Finished difference Result 5400 states and 10821 transitions.
[2022-02-18 13:53:00,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-02-18 13:53:00,622 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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 81
[2022-02-18 13:53:00,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:00,628 INFO L225 Difference]: With dead ends: 5400
[2022-02-18 13:53:00,628 INFO L226 Difference]: Without dead ends: 5400
[2022-02-18 13:53:00,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=520, Invalid=2030, Unknown=0, NotChecked=0, Total=2550
[2022-02-18 13:53:00,628 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 1703 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:00,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1703 Valid, 2835 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-02-18 13:53:00,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states.
[2022-02-18 13:53:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 3386.
[2022-02-18 13:53:00,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3384 states have (on average 2.009160756501182) internal successors, (6799), 3385 states have internal predecessors, (6799), 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)
[2022-02-18 13:53:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 6799 transitions.
[2022-02-18 13:53:00,663 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 6799 transitions. Word has length 81
[2022-02-18 13:53:00,664 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:00,664 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 6799 transitions.
[2022-02-18 13:53:00,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 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)
[2022-02-18 13:53:00,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 6799 transitions.
[2022-02-18 13:53:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2022-02-18 13:53:00,666 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:00,666 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:00,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2022-02-18 13:53:00,666 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:00,666 INFO L85 PathProgramCache]: Analyzing trace with hash -820424251, now seen corresponding path program 1 times
[2022-02-18 13:53:00,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:00,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196742969]
[2022-02-18 13:53:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:00,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:00,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:00,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:00,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196742969]
[2022-02-18 13:53:00,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196742969] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:00,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455263909]
[2022-02-18 13:53:00,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:00,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:00,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:00,883 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)
[2022-02-18 13:53:00,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-02-18 13:53:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:01,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-02-18 13:53:01,023 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:01,211 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:01,212 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
[2022-02-18 13:53:01,341 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 11 treesize of output 7
[2022-02-18 13:53:01,430 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 14 treesize of output 16
[2022-02-18 13:53:01,782 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:01,929 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:53:01,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:01,939 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:53:02,328 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_689 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_689) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false
[2022-02-18 13:53:02,354 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:02,355 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 18 treesize of output 19
[2022-02-18 13:53:02,361 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:02,362 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 30 treesize of output 33
[2022-02-18 13:53:02,365 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 9 treesize of output 7
[2022-02-18 13:53:02,501 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:53:02,501 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 13 treesize of output 12
[2022-02-18 13:53:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:02,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455263909] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:53:02,510 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:53:02,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45
[2022-02-18 13:53:02,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9489951]
[2022-02-18 13:53:02,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:53:02,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-18 13:53:02,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:02,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-18 13:53:02,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1711, Unknown=1, NotChecked=84, Total=1980
[2022-02-18 13:53:02,513 INFO L87 Difference]: Start difference. First operand 3386 states and 6799 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-18 13:53:04,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:04,976 INFO L93 Difference]: Finished difference Result 7054 states and 14168 transitions.
[2022-02-18 13:53:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-18 13:53:04,977 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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 94
[2022-02-18 13:53:04,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:04,986 INFO L225 Difference]: With dead ends: 7054
[2022-02-18 13:53:04,986 INFO L226 Difference]: Without dead ends: 7054
[2022-02-18 13:53:04,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 164 SyntacticMatches, 7 SemanticMatches, 81 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1691 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1321, Invalid=5324, Unknown=1, NotChecked=160, Total=6806
[2022-02-18 13:53:04,987 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 3072 mSDsluCounter, 5239 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3072 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1112 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:04,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3072 Valid, 5618 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1280 Invalid, 0 Unknown, 1112 Unchecked, 0.5s Time]
[2022-02-18 13:53:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states.
[2022-02-18 13:53:05,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 4250.
[2022-02-18 13:53:05,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4250 states, 4248 states have (on average 2.0185969868173257) internal successors, (8575), 4249 states have internal predecessors, (8575), 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)
[2022-02-18 13:53:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4250 states to 4250 states and 8575 transitions.
[2022-02-18 13:53:05,041 INFO L78 Accepts]: Start accepts. Automaton has 4250 states and 8575 transitions. Word has length 94
[2022-02-18 13:53:05,041 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:05,041 INFO L470 AbstractCegarLoop]: Abstraction has 4250 states and 8575 transitions.
[2022-02-18 13:53:05,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-18 13:53:05,042 INFO L276 IsEmpty]: Start isEmpty. Operand 4250 states and 8575 transitions.
[2022-02-18 13:53:05,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2022-02-18 13:53:05,044 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:05,044 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:05,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-02-18 13:53:05,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45
[2022-02-18 13:53:05,260 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:05,261 INFO L85 PathProgramCache]: Analyzing trace with hash 339187099, now seen corresponding path program 2 times
[2022-02-18 13:53:05,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:05,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75610288]
[2022-02-18 13:53:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:05,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:05,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:05,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:05,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75610288]
[2022-02-18 13:53:05,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75610288] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:05,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756462062]
[2022-02-18 13:53:05,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-18 13:53:05,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:05,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:05,501 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)
[2022-02-18 13:53:05,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-18 13:53:05,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-18 13:53:05,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:53:05,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-02-18 13:53:05,630 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:05,758 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:05,759 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
[2022-02-18 13:53:05,876 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 11 treesize of output 7
[2022-02-18 13:53:05,959 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 14 treesize of output 16
[2022-02-18 13:53:06,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:06,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:53:06,447 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:06,447 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:53:06,781 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_726 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_726) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false
[2022-02-18 13:53:06,804 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:06,805 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 18 treesize of output 19
[2022-02-18 13:53:06,810 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:06,810 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 30 treesize of output 33
[2022-02-18 13:53:06,813 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 9 treesize of output 7
[2022-02-18 13:53:06,947 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:53:06,948 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 13 treesize of output 12
[2022-02-18 13:53:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:06,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756462062] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:53:06,956 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:53:06,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45
[2022-02-18 13:53:06,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580562246]
[2022-02-18 13:53:06,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:53:06,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-18 13:53:06,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-18 13:53:06,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1708, Unknown=1, NotChecked=84, Total=1980
[2022-02-18 13:53:06,958 INFO L87 Difference]: Start difference. First operand 4250 states and 8575 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-18 13:53:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:09,072 INFO L93 Difference]: Finished difference Result 9523 states and 19206 transitions.
[2022-02-18 13:53:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states.
[2022-02-18 13:53:09,072 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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 94
[2022-02-18 13:53:09,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:09,082 INFO L225 Difference]: With dead ends: 9523
[2022-02-18 13:53:09,082 INFO L226 Difference]: Without dead ends: 9523
[2022-02-18 13:53:09,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 168 SyntacticMatches, 7 SemanticMatches, 82 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1764 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1421, Invalid=5388, Unknown=1, NotChecked=162, Total=6972
[2022-02-18 13:53:09,083 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 3669 mSDsluCounter, 4954 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3669 SdHoareTripleChecker+Valid, 5346 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 673 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:09,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3669 Valid, 5346 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1399 Invalid, 0 Unknown, 673 Unchecked, 0.5s Time]
[2022-02-18 13:53:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states.
[2022-02-18 13:53:09,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 4369.
[2022-02-18 13:53:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4369 states, 4367 states have (on average 2.0116784978245934) internal successors, (8785), 4368 states have internal predecessors, (8785), 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)
[2022-02-18 13:53:09,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4369 states to 4369 states and 8785 transitions.
[2022-02-18 13:53:09,135 INFO L78 Accepts]: Start accepts. Automaton has 4369 states and 8785 transitions. Word has length 94
[2022-02-18 13:53:09,135 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:09,135 INFO L470 AbstractCegarLoop]: Abstraction has 4369 states and 8785 transitions.
[2022-02-18 13:53:09,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-18 13:53:09,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4369 states and 8785 transitions.
[2022-02-18 13:53:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2022-02-18 13:53:09,138 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:09,138 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:09,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-02-18 13:53:09,353 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,SelfDestructingSolverStorable46
[2022-02-18 13:53:09,353 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:09,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1501853757, now seen corresponding path program 3 times
[2022-02-18 13:53:09,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:09,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598669395]
[2022-02-18 13:53:09,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:09,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:09,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:09,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598669395]
[2022-02-18 13:53:09,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598669395] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:09,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367466649]
[2022-02-18 13:53:09,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-18 13:53:09,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:09,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:09,584 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)
[2022-02-18 13:53:09,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-02-18 13:53:09,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-02-18 13:53:09,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:53:09,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-02-18 13:53:09,679 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:09,801 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:09,801 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
[2022-02-18 13:53:09,910 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 11 treesize of output 7
[2022-02-18 13:53:09,992 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 14 treesize of output 16
[2022-02-18 13:53:10,340 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:10,460 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:53:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:10,467 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:53:10,782 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_763 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_763) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false
[2022-02-18 13:53:10,827 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:10,828 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 18 treesize of output 19
[2022-02-18 13:53:10,832 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:10,832 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 30 treesize of output 33
[2022-02-18 13:53:10,834 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 9 treesize of output 7
[2022-02-18 13:53:10,940 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:53:10,941 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 13 treesize of output 12
[2022-02-18 13:53:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:10,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367466649] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:53:10,950 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:53:10,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 45
[2022-02-18 13:53:10,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723172001]
[2022-02-18 13:53:10,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:53:10,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2022-02-18 13:53:10,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:10,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2022-02-18 13:53:10,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1716, Unknown=1, NotChecked=84, Total=1980
[2022-02-18 13:53:10,952 INFO L87 Difference]: Start difference. First operand 4369 states and 8785 transitions. Second operand has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-18 13:53:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:12,950 INFO L93 Difference]: Finished difference Result 9891 states and 19888 transitions.
[2022-02-18 13:53:12,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states.
[2022-02-18 13:53:12,950 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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 94
[2022-02-18 13:53:12,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:12,962 INFO L225 Difference]: With dead ends: 9891
[2022-02-18 13:53:12,962 INFO L226 Difference]: Without dead ends: 9891
[2022-02-18 13:53:12,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 166 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1362, Invalid=5283, Unknown=1, NotChecked=160, Total=6806
[2022-02-18 13:53:12,963 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 3333 mSDsluCounter, 5450 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 819 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:12,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3333 Valid, 5846 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1422 Invalid, 0 Unknown, 819 Unchecked, 0.5s Time]
[2022-02-18 13:53:12,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9891 states.
[2022-02-18 13:53:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9891 to 4483.
[2022-02-18 13:53:13,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4481 states have (on average 2.0127203749163134) internal successors, (9019), 4482 states have internal predecessors, (9019), 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)
[2022-02-18 13:53:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 9019 transitions.
[2022-02-18 13:53:13,023 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 9019 transitions. Word has length 94
[2022-02-18 13:53:13,023 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:13,023 INFO L470 AbstractCegarLoop]: Abstraction has 4483 states and 9019 transitions.
[2022-02-18 13:53:13,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 5.088888888888889) internal successors, (229), 45 states have internal predecessors, (229), 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)
[2022-02-18 13:53:13,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 9019 transitions.
[2022-02-18 13:53:13,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2022-02-18 13:53:13,026 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:13,026 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:13,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-02-18 13:53:13,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:13,239 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:13,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:13,240 INFO L85 PathProgramCache]: Analyzing trace with hash 420528999, now seen corresponding path program 4 times
[2022-02-18 13:53:13,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:13,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131563174]
[2022-02-18 13:53:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:13,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:13,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:13,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131563174]
[2022-02-18 13:53:13,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131563174] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:13,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122008590]
[2022-02-18 13:53:13,470 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-18 13:53:13,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:13,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:13,484 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)
[2022-02-18 13:53:13,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-02-18 13:53:13,616 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-18 13:53:13,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:53:13,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 45 conjunts are in the unsatisfiable core
[2022-02-18 13:53:13,620 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:13,695 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:13,695 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
[2022-02-18 13:53:13,765 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 11 treesize of output 7
[2022-02-18 13:53:13,818 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 14 treesize of output 16
[2022-02-18 13:53:14,062 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:14,234 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:53:14,594 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int))) (<= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_800) |c_~#pqb~0.base|) |c_~#pqb~0.offset|))) is different from false
[2022-02-18 13:53:14,617 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:14,617 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 18 treesize of output 19
[2022-02-18 13:53:14,624 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:14,624 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 30 treesize of output 33
[2022-02-18 13:53:14,627 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 9 treesize of output 7
[2022-02-18 13:53:14,765 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:53:14,765 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 13 treesize of output 12
[2022-02-18 13:53:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:14,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122008590] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:53:14,774 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:53:14,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 46
[2022-02-18 13:53:14,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963381285]
[2022-02-18 13:53:14,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:53:14,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states
[2022-02-18 13:53:14,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:14,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants.
[2022-02-18 13:53:14,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1797, Unknown=1, NotChecked=86, Total=2070
[2022-02-18 13:53:14,775 INFO L87 Difference]: Start difference. First operand 4483 states and 9019 transitions. Second operand has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:53:16,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:16,994 INFO L93 Difference]: Finished difference Result 9836 states and 19719 transitions.
[2022-02-18 13:53:16,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-02-18 13:53:16,994 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94
[2022-02-18 13:53:16,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:17,005 INFO L225 Difference]: With dead ends: 9836
[2022-02-18 13:53:17,006 INFO L226 Difference]: Without dead ends: 9836
[2022-02-18 13:53:17,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 168 SyntacticMatches, 7 SemanticMatches, 80 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1571 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1285, Invalid=5198, Unknown=1, NotChecked=158, Total=6642
[2022-02-18 13:53:17,007 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 3536 mSDsluCounter, 5499 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3536 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 797 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:17,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3536 Valid, 5914 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1452 Invalid, 0 Unknown, 797 Unchecked, 0.5s Time]
[2022-02-18 13:53:17,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9836 states.
[2022-02-18 13:53:17,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9836 to 4124.
[2022-02-18 13:53:17,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4124 states, 4122 states have (on average 2.005337214944202) internal successors, (8266), 4123 states have internal predecessors, (8266), 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)
[2022-02-18 13:53:17,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4124 states to 4124 states and 8266 transitions.
[2022-02-18 13:53:17,062 INFO L78 Accepts]: Start accepts. Automaton has 4124 states and 8266 transitions. Word has length 94
[2022-02-18 13:53:17,062 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:17,062 INFO L470 AbstractCegarLoop]: Abstraction has 4124 states and 8266 transitions.
[2022-02-18 13:53:17,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.0) internal successors, (230), 46 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 13:53:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4124 states and 8266 transitions.
[2022-02-18 13:53:17,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2022-02-18 13:53:17,066 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:17,066 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:17,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-02-18 13:53:17,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48
[2022-02-18 13:53:17,279 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:17,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:17,280 INFO L85 PathProgramCache]: Analyzing trace with hash -579571583, now seen corresponding path program 1 times
[2022-02-18 13:53:17,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:17,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799269219]
[2022-02-18 13:53:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:17,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:17,435 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:17,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:17,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799269219]
[2022-02-18 13:53:17,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799269219] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:53:17,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 13:53:17,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2022-02-18 13:53:17,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286980866]
[2022-02-18 13:53:17,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:53:17,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-02-18 13:53:17,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:17,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-02-18 13:53:17,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210
[2022-02-18 13:53:17,437 INFO L87 Difference]: Start difference. First operand 4124 states and 8266 transitions. Second operand has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 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)
[2022-02-18 13:53:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:17,769 INFO L93 Difference]: Finished difference Result 3495 states and 6986 transitions.
[2022-02-18 13:53:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2022-02-18 13:53:17,769 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 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 96
[2022-02-18 13:53:17,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:17,777 INFO L225 Difference]: With dead ends: 3495
[2022-02-18 13:53:17,777 INFO L226 Difference]: Without dead ends: 3180
[2022-02-18 13:53:17,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756
[2022-02-18 13:53:17,777 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 662 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:17,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 1498 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 13:53:17,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states.
[2022-02-18 13:53:17,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3172.
[2022-02-18 13:53:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3170 states have (on average 2.00410094637224) internal successors, (6353), 3171 states have internal predecessors, (6353), 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)
[2022-02-18 13:53:17,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 6353 transitions.
[2022-02-18 13:53:17,838 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 6353 transitions. Word has length 96
[2022-02-18 13:53:17,838 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:17,838 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 6353 transitions.
[2022-02-18 13:53:17,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 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)
[2022-02-18 13:53:17,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 6353 transitions.
[2022-02-18 13:53:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:53:17,852 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:17,852 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:17,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2022-02-18 13:53:17,853 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:17,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:17,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1471731716, now seen corresponding path program 5 times
[2022-02-18 13:53:17,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:17,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642536981]
[2022-02-18 13:53:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:17,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:18,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:18,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642536981]
[2022-02-18 13:53:18,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642536981] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:18,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21845329]
[2022-02-18 13:53:18,100 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-18 13:53:18,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:18,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:18,101 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)
[2022-02-18 13:53:18,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-02-18 13:53:18,190 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-18 13:53:18,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:53:18,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:53:18,197 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:18,266 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:18,267 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
[2022-02-18 13:53:18,339 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 11 treesize of output 7
[2022-02-18 13:53:18,393 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 14 treesize of output 16
[2022-02-18 13:53:18,626 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:18,928 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:19,056 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:53:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:19,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-02-18 13:53:19,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21845329] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 13:53:19,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-02-18 13:53:19,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [27] total 47
[2022-02-18 13:53:19,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666510970]
[2022-02-18 13:53:19,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 13:53:19,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2022-02-18 13:53:19,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:19,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2022-02-18 13:53:19,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1919, Unknown=0, NotChecked=0, Total=2162
[2022-02-18 13:53:19,084 INFO L87 Difference]: Start difference. First operand 3172 states and 6353 transitions. Second operand has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 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)
[2022-02-18 13:53:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:20,237 INFO L93 Difference]: Finished difference Result 6982 states and 14000 transitions.
[2022-02-18 13:53:20,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states.
[2022-02-18 13:53:20,237 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 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 106
[2022-02-18 13:53:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:20,245 INFO L225 Difference]: With dead ends: 6982
[2022-02-18 13:53:20,246 INFO L226 Difference]: Without dead ends: 6982
[2022-02-18 13:53:20,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1330, Invalid=4832, Unknown=0, NotChecked=0, Total=6162
[2022-02-18 13:53:20,247 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1907 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:20,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1907 Valid, 2514 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-02-18 13:53:20,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6982 states.
[2022-02-18 13:53:20,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6982 to 3300.
[2022-02-18 13:53:20,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3298 states have (on average 2.0051546391752577) internal successors, (6613), 3299 states have internal predecessors, (6613), 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)
[2022-02-18 13:53:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6613 transitions.
[2022-02-18 13:53:20,285 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6613 transitions. Word has length 106
[2022-02-18 13:53:20,285 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:20,285 INFO L470 AbstractCegarLoop]: Abstraction has 3300 states and 6613 transitions.
[2022-02-18 13:53:20,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 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)
[2022-02-18 13:53:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6613 transitions.
[2022-02-18 13:53:20,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:53:20,288 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:20,288 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:20,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-02-18 13:53:20,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:20,496 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1681139458, now seen corresponding path program 6 times
[2022-02-18 13:53:20,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:20,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984426026]
[2022-02-18 13:53:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:20,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:20,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:20,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984426026]
[2022-02-18 13:53:20,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984426026] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:20,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540984125]
[2022-02-18 13:53:20,875 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-18 13:53:20,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:20,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:20,876 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)
[2022-02-18 13:53:20,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-02-18 13:53:21,000 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2022-02-18 13:53:21,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:53:21,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:53:21,003 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:21,139 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:21,139 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
[2022-02-18 13:53:21,253 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 11 treesize of output 7
[2022-02-18 13:53:21,339 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 14 treesize of output 16
[2022-02-18 13:53:21,610 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:21,933 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:22,021 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:53:22,039 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:22,039 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:53:22,484 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_916 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_916) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:53:22,509 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:22,509 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 20 treesize of output 21
[2022-02-18 13:53:22,514 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:22,514 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 34 treesize of output 37
[2022-02-18 13:53:22,517 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 11 treesize of output 9
[2022-02-18 13:53:22,652 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:53:22,652 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12
[2022-02-18 13:53:22,662 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:22,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540984125] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:53:22,662 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:53:22,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 22, 22] total 62
[2022-02-18 13:53:22,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890534483]
[2022-02-18 13:53:22,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:53:22,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states
[2022-02-18 13:53:22,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:22,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants.
[2022-02-18 13:53:22,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=3277, Unknown=1, NotChecked=118, Total=3782
[2022-02-18 13:53:22,664 INFO L87 Difference]: Start difference. First operand 3300 states and 6613 transitions. Second operand has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 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)
[2022-02-18 13:53:26,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:26,649 INFO L93 Difference]: Finished difference Result 12947 states and 26179 transitions.
[2022-02-18 13:53:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states.
[2022-02-18 13:53:26,650 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 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 106
[2022-02-18 13:53:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:26,665 INFO L225 Difference]: With dead ends: 12947
[2022-02-18 13:53:26,665 INFO L226 Difference]: Without dead ends: 12947
[2022-02-18 13:53:26,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 194 SyntacticMatches, 9 SemanticMatches, 160 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8181 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4214, Invalid=21549, Unknown=1, NotChecked=318, Total=26082
[2022-02-18 13:53:26,667 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 4671 mSDsluCounter, 10297 mSDsCounter, 0 mSdLazyCounter, 3199 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 10740 SdHoareTripleChecker+Invalid, 4448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1163 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:26,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4671 Valid, 10740 Invalid, 4448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3199 Invalid, 0 Unknown, 1163 Unchecked, 0.8s Time]
[2022-02-18 13:53:26,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12947 states.
[2022-02-18 13:53:26,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12947 to 2581.
[2022-02-18 13:53:26,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2581 states, 2579 states have (on average 1.9945715393563397) internal successors, (5144), 2580 states have internal predecessors, (5144), 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)
[2022-02-18 13:53:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 5144 transitions.
[2022-02-18 13:53:26,712 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 5144 transitions. Word has length 106
[2022-02-18 13:53:26,713 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:26,713 INFO L470 AbstractCegarLoop]: Abstraction has 2581 states and 5144 transitions.
[2022-02-18 13:53:26,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 4.370967741935484) internal successors, (271), 62 states have internal predecessors, (271), 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)
[2022-02-18 13:53:26,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 5144 transitions.
[2022-02-18 13:53:26,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:53:26,714 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:26,714 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:26,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-02-18 13:53:26,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:26,927 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:26,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:26,928 INFO L85 PathProgramCache]: Analyzing trace with hash -207921658, now seen corresponding path program 7 times
[2022-02-18 13:53:26,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:26,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515421378]
[2022-02-18 13:53:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:26,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:27,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:27,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515421378]
[2022-02-18 13:53:27,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515421378] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:27,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479464675]
[2022-02-18 13:53:27,314 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-18 13:53:27,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:27,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:27,316 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:53:27,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-02-18 13:53:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:27,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:53:27,413 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:27,532 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:27,533 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
[2022-02-18 13:53:27,646 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 11 treesize of output 7
[2022-02-18 13:53:27,730 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 14 treesize of output 16
[2022-02-18 13:53:28,155 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:28,519 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:28,573 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:53:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:28,602 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:53:34,041 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_967 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_967) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:53:34,080 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:34,080 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 20 treesize of output 21
[2022-02-18 13:53:34,089 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:34,090 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 34 treesize of output 37
[2022-02-18 13:53:34,094 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 11 treesize of output 9
[2022-02-18 13:53:34,363 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:53:34,364 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 13 treesize of output 12
[2022-02-18 13:53:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:34,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479464675] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:53:34,374 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:53:34,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:53:34,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717044234]
[2022-02-18 13:53:34,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:53:34,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:53:34,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:34,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:53:34,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=3554, Unknown=3, NotChecked=122, Total=4032
[2022-02-18 13:53:34,376 INFO L87 Difference]: Start difference. First operand 2581 states and 5144 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:53:38,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:38,461 INFO L93 Difference]: Finished difference Result 4446 states and 8836 transitions.
[2022-02-18 13:53:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2022-02-18 13:53:38,461 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:53:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:38,467 INFO L225 Difference]: With dead ends: 4446
[2022-02-18 13:53:38,467 INFO L226 Difference]: Without dead ends: 4446
[2022-02-18 13:53:38,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 178 SyntacticMatches, 11 SemanticMatches, 106 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3334 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1941, Invalid=9402, Unknown=3, NotChecked=210, Total=11556
[2022-02-18 13:53:38,468 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 3221 mSDsluCounter, 6352 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 970 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:38,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3221 Valid, 6652 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1617 Invalid, 0 Unknown, 970 Unchecked, 1.1s Time]
[2022-02-18 13:53:38,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states.
[2022-02-18 13:53:38,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 2577.
[2022-02-18 13:53:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2577 states, 2575 states have (on average 1.9945631067961165) internal successors, (5136), 2576 states have internal predecessors, (5136), 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)
[2022-02-18 13:53:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 5136 transitions.
[2022-02-18 13:53:38,493 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 5136 transitions. Word has length 106
[2022-02-18 13:53:38,493 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:38,493 INFO L470 AbstractCegarLoop]: Abstraction has 2577 states and 5136 transitions.
[2022-02-18 13:53:38,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:53:38,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 5136 transitions.
[2022-02-18 13:53:38,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:53:38,495 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:38,495 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:38,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-02-18 13:53:38,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:38,699 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:38,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:38,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1735581496, now seen corresponding path program 8 times
[2022-02-18 13:53:38,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:38,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733854180]
[2022-02-18 13:53:38,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:38,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:39,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:39,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733854180]
[2022-02-18 13:53:39,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733854180] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:39,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773449077]
[2022-02-18 13:53:39,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-18 13:53:39,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:39,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:39,291 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:53:39,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-02-18 13:53:39,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-18 13:53:39,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:53:39,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:53:39,432 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:39,607 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:39,607 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
[2022-02-18 13:53:39,808 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 11 treesize of output 7
[2022-02-18 13:53:39,942 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 14 treesize of output 16
[2022-02-18 13:53:40,576 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:41,113 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:41,206 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:53:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:41,259 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:53:50,582 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1018 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1018) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:53:50,629 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:50,629 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 20 treesize of output 21
[2022-02-18 13:53:50,639 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:53:50,639 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 34 treesize of output 37
[2022-02-18 13:53:50,643 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 11 treesize of output 9
[2022-02-18 13:53:50,916 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:53:50,917 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 13 treesize of output 12
[2022-02-18 13:53:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:50,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773449077] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:53:50,927 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:53:50,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:53:50,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107457527]
[2022-02-18 13:53:50,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:53:50,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:53:50,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:53:50,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:53:50,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=3544, Unknown=3, NotChecked=122, Total=4032
[2022-02-18 13:53:50,928 INFO L87 Difference]: Start difference. First operand 2577 states and 5136 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:53:56,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:53:56,473 INFO L93 Difference]: Finished difference Result 7327 states and 14654 transitions.
[2022-02-18 13:53:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states.
[2022-02-18 13:53:56,474 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:53:56,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:53:56,484 INFO L225 Difference]: With dead ends: 7327
[2022-02-18 13:53:56,484 INFO L226 Difference]: Without dead ends: 7327
[2022-02-18 13:53:56,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 185 SyntacticMatches, 19 SemanticMatches, 124 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5363 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=2174, Invalid=13327, Unknown=3, NotChecked=246, Total=15750
[2022-02-18 13:53:56,486 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 2652 mSDsluCounter, 7018 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 7367 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1503 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2022-02-18 13:53:56,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2652 Valid, 7367 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1558 Invalid, 0 Unknown, 1503 Unchecked, 1.2s Time]
[2022-02-18 13:53:56,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7327 states.
[2022-02-18 13:53:56,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7327 to 2580.
[2022-02-18 13:53:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2578 states have (on average 1.9945694336695112) internal successors, (5142), 2579 states have internal predecessors, (5142), 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)
[2022-02-18 13:53:56,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 5142 transitions.
[2022-02-18 13:53:56,525 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 5142 transitions. Word has length 106
[2022-02-18 13:53:56,525 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:53:56,525 INFO L470 AbstractCegarLoop]: Abstraction has 2580 states and 5142 transitions.
[2022-02-18 13:53:56,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:53:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 5142 transitions.
[2022-02-18 13:53:56,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:53:56,526 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:53:56,527 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:53:56,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2022-02-18 13:53:56,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53
[2022-02-18 13:53:56,743 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:53:56,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:53:56,744 INFO L85 PathProgramCache]: Analyzing trace with hash 444086522, now seen corresponding path program 9 times
[2022-02-18 13:53:56,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:53:56,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726346702]
[2022-02-18 13:53:56,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:53:56,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:53:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:53:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:57,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:53:57,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726346702]
[2022-02-18 13:53:57,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726346702] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:53:57,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532988369]
[2022-02-18 13:53:57,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-18 13:53:57,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:53:57,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:53:57,353 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:53:57,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2022-02-18 13:53:57,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-02-18 13:53:57,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:53:57,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:53:57,466 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:53:57,628 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:53:57,629 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
[2022-02-18 13:53:57,794 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 11 treesize of output 7
[2022-02-18 13:53:57,890 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 14 treesize of output 16
[2022-02-18 13:53:58,723 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:59,329 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:53:59,421 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:53:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:53:59,472 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:54:07,643 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1069 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1069) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:54:07,683 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:54:07,683 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 20 treesize of output 21
[2022-02-18 13:54:07,697 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:54:07,698 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 34 treesize of output 37
[2022-02-18 13:54:07,703 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 11 treesize of output 9
[2022-02-18 13:54:08,011 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:54:08,011 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 13 treesize of output 12
[2022-02-18 13:54:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:54:08,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532988369] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:54:08,020 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:54:08,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:54:08,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37077441]
[2022-02-18 13:54:08,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:54:08,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:54:08,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:54:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:54:08,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=3558, Unknown=4, NotChecked=122, Total=4032
[2022-02-18 13:54:08,022 INFO L87 Difference]: Start difference. First operand 2580 states and 5142 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:54:17,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:54:17,702 INFO L93 Difference]: Finished difference Result 6230 states and 12435 transitions.
[2022-02-18 13:54:17,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states.
[2022-02-18 13:54:17,703 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:54:17,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:54:17,710 INFO L225 Difference]: With dead ends: 6230
[2022-02-18 13:54:17,710 INFO L226 Difference]: Without dead ends: 6230
[2022-02-18 13:54:17,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 183 SyntacticMatches, 21 SemanticMatches, 145 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 6875 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=4008, Invalid=17162, Unknown=4, NotChecked=288, Total=21462
[2022-02-18 13:54:17,719 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 4191 mSDsluCounter, 7488 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 7829 SdHoareTripleChecker+Invalid, 4047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1939 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2022-02-18 13:54:17,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4191 Valid, 7829 Invalid, 4047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1941 Invalid, 0 Unknown, 1939 Unchecked, 1.7s Time]
[2022-02-18 13:54:17,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6230 states.
[2022-02-18 13:54:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6230 to 2573.
[2022-02-18 13:54:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 1.9945546479968883) internal successors, (5128), 2572 states have internal predecessors, (5128), 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)
[2022-02-18 13:54:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 5128 transitions.
[2022-02-18 13:54:17,752 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 5128 transitions. Word has length 106
[2022-02-18 13:54:17,752 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:54:17,752 INFO L470 AbstractCegarLoop]: Abstraction has 2573 states and 5128 transitions.
[2022-02-18 13:54:17,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:54:17,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 5128 transitions.
[2022-02-18 13:54:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:54:17,754 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:54:17,754 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:54:17,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2022-02-18 13:54:17,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:54:17,960 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:54:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:54:17,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1988436372, now seen corresponding path program 10 times
[2022-02-18 13:54:17,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:54:17,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727577960]
[2022-02-18 13:54:17,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:54:17,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:54:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:54:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:54:18,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:54:18,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727577960]
[2022-02-18 13:54:18,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727577960] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:54:18,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783385434]
[2022-02-18 13:54:18,832 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-18 13:54:18,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:54:18,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:54:18,833 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:54:18,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2022-02-18 13:54:18,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-18 13:54:18,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:54:18,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 58 conjunts are in the unsatisfiable core
[2022-02-18 13:54:18,964 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:54:19,260 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:54:19,260 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
[2022-02-18 13:54:19,454 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 11 treesize of output 7
[2022-02-18 13:54:19,578 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 14 treesize of output 16
[2022-02-18 13:54:20,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:54:21,096 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:54:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:54:21,272 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:54:36,192 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1120 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1120) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:54:36,236 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:54:36,236 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 20 treesize of output 21
[2022-02-18 13:54:36,249 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:54:36,249 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 34 treesize of output 37
[2022-02-18 13:54:36,255 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 11 treesize of output 9
[2022-02-18 13:54:36,659 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:54:36,659 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 13 treesize of output 12
[2022-02-18 13:54:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:54:36,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783385434] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:54:36,670 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:54:36,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:54:36,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154622583]
[2022-02-18 13:54:36,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:54:36,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:54:36,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:54:36,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:54:36,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=3515, Unknown=4, NotChecked=122, Total=4032
[2022-02-18 13:54:36,671 INFO L87 Difference]: Start difference. First operand 2573 states and 5128 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:55:18,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:55:18,006 INFO L93 Difference]: Finished difference Result 15296 states and 30680 transitions.
[2022-02-18 13:55:18,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states.
[2022-02-18 13:55:18,006 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:55:18,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:55:18,028 INFO L225 Difference]: With dead ends: 15296
[2022-02-18 13:55:18,028 INFO L226 Difference]: Without dead ends: 15296
[2022-02-18 13:55:18,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 189 SyntacticMatches, 6 SemanticMatches, 168 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9747 ImplicationChecksByTransitivity, 53.7s TimeCoverageRelationStatistics Valid=3634, Invalid=24749, Unknown=13, NotChecked=334, Total=28730
[2022-02-18 13:55:18,031 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 3308 mSDsluCounter, 13982 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3308 SdHoareTripleChecker+Valid, 14398 SdHoareTripleChecker+Invalid, 6334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3473 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2022-02-18 13:55:18,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3308 Valid, 14398 Invalid, 6334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2812 Invalid, 0 Unknown, 3473 Unchecked, 3.5s Time]
[2022-02-18 13:55:18,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15296 states.
[2022-02-18 13:55:18,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15296 to 2599.
[2022-02-18 13:55:18,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2597 states have (on average 1.993068925683481) internal successors, (5176), 2598 states have internal predecessors, (5176), 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)
[2022-02-18 13:55:18,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 5176 transitions.
[2022-02-18 13:55:18,116 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 5176 transitions. Word has length 106
[2022-02-18 13:55:18,116 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:55:18,116 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 5176 transitions.
[2022-02-18 13:55:18,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:55:18,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 5176 transitions.
[2022-02-18 13:55:18,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:55:18,118 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:55:18,118 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:55:18,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2022-02-18 13:55:18,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55
[2022-02-18 13:55:18,331 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:55:18,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:55:18,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1681124850, now seen corresponding path program 11 times
[2022-02-18 13:55:18,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:55:18,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664212277]
[2022-02-18 13:55:18,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:55:18,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:55:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:55:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:55:19,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:55:19,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664212277]
[2022-02-18 13:55:19,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664212277] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:55:19,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361511289]
[2022-02-18 13:55:19,559 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-18 13:55:19,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:55:19,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:55:19,560 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:55:19,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2022-02-18 13:55:19,665 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-18 13:55:19,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:55:19,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:55:19,668 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:55:20,001 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:55:20,002 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
[2022-02-18 13:55:20,594 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 11 treesize of output 7
[2022-02-18 13:55:20,790 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 14 treesize of output 16
[2022-02-18 13:55:21,754 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:55:22,563 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:55:22,705 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:55:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:55:22,785 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:55:36,461 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1171 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1171) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:55:36,518 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:55:36,518 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 20 treesize of output 21
[2022-02-18 13:55:36,542 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:55:36,542 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 34 treesize of output 37
[2022-02-18 13:55:36,549 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 11 treesize of output 9
[2022-02-18 13:55:37,084 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:55:37,085 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 13 treesize of output 12
[2022-02-18 13:55:37,096 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:55:37,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361511289] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:55:37,096 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:55:37,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:55:37,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668078886]
[2022-02-18 13:55:37,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:55:37,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:55:37,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:55:37,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:55:37,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=3547, Unknown=4, NotChecked=122, Total=4032
[2022-02-18 13:55:37,098 INFO L87 Difference]: Start difference. First operand 2599 states and 5176 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:55:50,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:55:50,796 INFO L93 Difference]: Finished difference Result 6773 states and 13528 transitions.
[2022-02-18 13:55:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states.
[2022-02-18 13:55:50,797 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:55:50,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:55:50,807 INFO L225 Difference]: With dead ends: 6773
[2022-02-18 13:55:50,807 INFO L226 Difference]: Without dead ends: 6773
[2022-02-18 13:55:50,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 181 SyntacticMatches, 37 SemanticMatches, 125 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6116 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=2169, Invalid=13581, Unknown=4, NotChecked=248, Total=16002
[2022-02-18 13:55:50,809 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 2266 mSDsluCounter, 10359 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 10775 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1408 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2022-02-18 13:55:50,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2266 Valid, 10775 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2155 Invalid, 0 Unknown, 1408 Unchecked, 3.2s Time]
[2022-02-18 13:55:50,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states.
[2022-02-18 13:55:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 2602.
[2022-02-18 13:55:50,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2600 states have (on average 1.993076923076923) internal successors, (5182), 2601 states have internal predecessors, (5182), 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)
[2022-02-18 13:55:50,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 5182 transitions.
[2022-02-18 13:55:50,851 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 5182 transitions. Word has length 106
[2022-02-18 13:55:50,851 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:55:50,852 INFO L470 AbstractCegarLoop]: Abstraction has 2602 states and 5182 transitions.
[2022-02-18 13:55:50,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:55:50,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 5182 transitions.
[2022-02-18 13:55:50,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:55:50,868 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:55:50,868 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:55:50,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2022-02-18 13:55:51,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56
[2022-02-18 13:55:51,092 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:55:51,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:55:51,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1322347472, now seen corresponding path program 12 times
[2022-02-18 13:55:51,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:55:51,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330420012]
[2022-02-18 13:55:51,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:55:51,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:55:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:55:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:55:52,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:55:52,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330420012]
[2022-02-18 13:55:52,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330420012] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:55:52,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141958400]
[2022-02-18 13:55:52,509 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-18 13:55:52,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:55:52,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:55:52,510 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:55:52,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2022-02-18 13:55:52,618 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2022-02-18 13:55:52,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:55:52,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:55:52,622 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:55:52,975 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:55:52,976 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
[2022-02-18 13:55:53,276 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 11 treesize of output 7
[2022-02-18 13:55:53,496 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 14 treesize of output 16
[2022-02-18 13:55:54,587 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:55:55,714 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:55:55,936 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:55:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:55:56,023 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:56:02,686 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1222 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1222) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:56:02,753 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:56:02,753 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 20 treesize of output 21
[2022-02-18 13:56:02,770 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:56:02,770 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 34 treesize of output 37
[2022-02-18 13:56:02,777 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 11 treesize of output 9
[2022-02-18 13:56:03,288 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:56:03,288 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 13 treesize of output 12
[2022-02-18 13:56:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:56:03,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141958400] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:56:03,300 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:56:03,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:56:03,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622838314]
[2022-02-18 13:56:03,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:56:03,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:56:03,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:56:03,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:56:03,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=3556, Unknown=2, NotChecked=122, Total=4032
[2022-02-18 13:56:03,302 INFO L87 Difference]: Start difference. First operand 2602 states and 5182 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:56:21,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:56:21,878 INFO L93 Difference]: Finished difference Result 5834 states and 11662 transitions.
[2022-02-18 13:56:21,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-18 13:56:21,879 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:56:21,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:56:21,886 INFO L225 Difference]: With dead ends: 5834
[2022-02-18 13:56:21,886 INFO L226 Difference]: Without dead ends: 5834
[2022-02-18 13:56:21,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 186 SyntacticMatches, 4 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3779 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=1769, Invalid=11570, Unknown=5, NotChecked=228, Total=13572
[2022-02-18 13:56:21,902 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1897 mSDsluCounter, 10193 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1897 SdHoareTripleChecker+Valid, 10577 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1571 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:56:21,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1897 Valid, 10577 Invalid, 3905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2316 Invalid, 0 Unknown, 1571 Unchecked, 4.1s Time]
[2022-02-18 13:56:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states.
[2022-02-18 13:56:21,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 2585.
[2022-02-18 13:56:21,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2583 states have (on average 1.9930313588850175) internal successors, (5148), 2584 states have internal predecessors, (5148), 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)
[2022-02-18 13:56:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 5148 transitions.
[2022-02-18 13:56:21,939 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 5148 transitions. Word has length 106
[2022-02-18 13:56:21,939 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:56:21,940 INFO L470 AbstractCegarLoop]: Abstraction has 2585 states and 5148 transitions.
[2022-02-18 13:56:21,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:56:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 5148 transitions.
[2022-02-18 13:56:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:56:21,941 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:56:21,941 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:56:21,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2022-02-18 13:56:22,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57
[2022-02-18 13:56:22,155 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:56:22,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:56:22,156 INFO L85 PathProgramCache]: Analyzing trace with hash -525088272, now seen corresponding path program 13 times
[2022-02-18 13:56:22,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:56:22,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224887667]
[2022-02-18 13:56:22,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:56:22,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:56:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:56:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:56:23,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:56:23,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224887667]
[2022-02-18 13:56:23,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224887667] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:56:23,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520350776]
[2022-02-18 13:56:23,627 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-18 13:56:23,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:56:23,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:56:23,628 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:56:23,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2022-02-18 13:56:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:56:23,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:56:23,752 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:56:24,123 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:56:24,123 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
[2022-02-18 13:56:24,479 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 11 treesize of output 7
[2022-02-18 13:56:24,751 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 14 treesize of output 16
[2022-02-18 13:56:26,709 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:56:27,844 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:56:28,034 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:56:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:56:28,150 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:56:49,030 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1273 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1273) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:56:49,134 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:56:49,135 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 20 treesize of output 21
[2022-02-18 13:56:49,173 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:56:49,174 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 34 treesize of output 37
[2022-02-18 13:56:49,185 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 11 treesize of output 9
[2022-02-18 13:56:49,877 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:56:49,877 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 13 treesize of output 12
[2022-02-18 13:56:49,892 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:56:49,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520350776] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:56:49,893 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:56:49,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:56:49,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113004339]
[2022-02-18 13:56:49,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:56:49,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:56:49,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:56:49,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:56:49,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=3526, Unknown=8, NotChecked=122, Total=4032
[2022-02-18 13:56:49,895 INFO L87 Difference]: Start difference. First operand 2585 states and 5148 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:57:59,638 WARN L228 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-02-18 13:58:05,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:58:05,693 INFO L93 Difference]: Finished difference Result 15288 states and 30642 transitions.
[2022-02-18 13:58:05,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states.
[2022-02-18 13:58:05,694 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:58:05,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:58:05,717 INFO L225 Difference]: With dead ends: 15288
[2022-02-18 13:58:05,718 INFO L226 Difference]: Without dead ends: 15288
[2022-02-18 13:58:05,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 164 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9215 ImplicationChecksByTransitivity, 94.1s TimeCoverageRelationStatistics Valid=3498, Invalid=23547, Unknown=19, NotChecked=326, Total=27390
[2022-02-18 13:58:05,728 INFO L933 BasicCegarLoop]: 477 mSDtfsCounter, 3390 mSDsluCounter, 14536 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 15011 SdHoareTripleChecker+Invalid, 6422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3869 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2022-02-18 13:58:05,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3390 Valid, 15011 Invalid, 6422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2471 Invalid, 0 Unknown, 3869 Unchecked, 4.6s Time]
[2022-02-18 13:58:05,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15288 states.
[2022-02-18 13:58:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15288 to 2612.
[2022-02-18 13:58:05,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2610 states have (on average 1.993103448275862) internal successors, (5202), 2611 states have internal predecessors, (5202), 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)
[2022-02-18 13:58:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 5202 transitions.
[2022-02-18 13:58:05,814 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 5202 transitions. Word has length 106
[2022-02-18 13:58:05,814 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:58:05,814 INFO L470 AbstractCegarLoop]: Abstraction has 2612 states and 5202 transitions.
[2022-02-18 13:58:05,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:58:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 5202 transitions.
[2022-02-18 13:58:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:58:05,837 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:58:05,837 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:58:05,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2022-02-18 13:58:06,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58
[2022-02-18 13:58:06,051 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:58:06,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:58:06,052 INFO L85 PathProgramCache]: Analyzing trace with hash -373288528, now seen corresponding path program 14 times
[2022-02-18 13:58:06,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:58:06,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284537270]
[2022-02-18 13:58:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:58:06,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:58:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:58:07,678 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:58:07,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:58:07,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284537270]
[2022-02-18 13:58:07,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284537270] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:58:07,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23315547]
[2022-02-18 13:58:07,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-18 13:58:07,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:58:07,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:58:07,680 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:58:07,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2022-02-18 13:58:07,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-18 13:58:07,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:58:07,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:58:07,827 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:58:08,151 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:58:08,152 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
[2022-02-18 13:58:08,597 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 11 treesize of output 7
[2022-02-18 13:58:08,898 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 14 treesize of output 16
[2022-02-18 13:58:10,504 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:58:11,727 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:58:11,896 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:58:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:58:12,032 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:58:25,922 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1324 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1324) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:58:25,977 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:58:25,977 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 20 treesize of output 21
[2022-02-18 13:58:25,993 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:58:25,994 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 34 treesize of output 37
[2022-02-18 13:58:26,000 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 11 treesize of output 9
[2022-02-18 13:58:26,569 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:58:26,569 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 13 treesize of output 12
[2022-02-18 13:58:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:58:26,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23315547] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:58:26,580 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:58:26,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:58:26,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576754265]
[2022-02-18 13:58:26,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:58:26,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:58:26,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:58:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:58:26,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=3564, Unknown=4, NotChecked=122, Total=4032
[2022-02-18 13:58:26,582 INFO L87 Difference]: Start difference. First operand 2612 states and 5202 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:58:31,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:58:31,994 INFO L93 Difference]: Finished difference Result 5058 states and 10091 transitions.
[2022-02-18 13:58:31,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states.
[2022-02-18 13:58:31,994 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:58:31,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:58:32,001 INFO L225 Difference]: With dead ends: 5058
[2022-02-18 13:58:32,001 INFO L226 Difference]: Without dead ends: 5058
[2022-02-18 13:58:32,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 176 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2258 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=789, Invalid=6351, Unknown=4, NotChecked=166, Total=7310
[2022-02-18 13:58:32,003 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 1232 mSDsluCounter, 6687 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 7017 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1046 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2022-02-18 13:58:32,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1232 Valid, 7017 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 898 Invalid, 0 Unknown, 1046 Unchecked, 1.7s Time]
[2022-02-18 13:58:32,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5058 states.
[2022-02-18 13:58:32,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5058 to 2784.
[2022-02-18 13:58:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2782 states have (on average 1.9906542056074767) internal successors, (5538), 2783 states have internal predecessors, (5538), 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)
[2022-02-18 13:58:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 5538 transitions.
[2022-02-18 13:58:32,039 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 5538 transitions. Word has length 106
[2022-02-18 13:58:32,039 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:58:32,039 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 5538 transitions.
[2022-02-18 13:58:32,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:58:32,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 5538 transitions.
[2022-02-18 13:58:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:58:32,041 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:58:32,041 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:58:32,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2022-02-18 13:58:32,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:58:32,260 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:58:32,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:58:32,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1664783502, now seen corresponding path program 15 times
[2022-02-18 13:58:32,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:58:32,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910507683]
[2022-02-18 13:58:32,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:58:32,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:58:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:58:33,792 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:58:33,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:58:33,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910507683]
[2022-02-18 13:58:33,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910507683] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:58:33,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319942089]
[2022-02-18 13:58:33,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-18 13:58:33,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:58:33,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:58:33,794 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:58:33,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2022-02-18 13:58:33,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-02-18 13:58:33,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:58:33,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 13:58:33,922 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:58:34,296 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:58:34,296 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
[2022-02-18 13:58:34,768 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 11 treesize of output 7
[2022-02-18 13:58:35,044 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 14 treesize of output 16
[2022-02-18 13:58:36,688 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:58:38,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:58:38,239 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 13:58:38,345 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:58:38,345 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:58:51,499 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1375 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1375) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:58:51,560 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:58:51,560 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 20 treesize of output 21
[2022-02-18 13:58:51,580 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:58:51,580 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 34 treesize of output 37
[2022-02-18 13:58:51,587 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 11 treesize of output 9
[2022-02-18 13:58:52,244 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:58:52,244 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 13 treesize of output 12
[2022-02-18 13:58:52,257 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:58:52,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319942089] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:58:52,257 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:58:52,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:58:52,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382900014]
[2022-02-18 13:58:52,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:58:52,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:58:52,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:58:52,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:58:52,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3569, Unknown=5, NotChecked=122, Total=4032
[2022-02-18 13:58:52,259 INFO L87 Difference]: Start difference. First operand 2784 states and 5538 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:59:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 13:59:02,578 INFO L93 Difference]: Finished difference Result 5105 states and 10156 transitions.
[2022-02-18 13:59:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states.
[2022-02-18 13:59:02,578 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 13:59:02,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 13:59:02,585 INFO L225 Difference]: With dead ends: 5105
[2022-02-18 13:59:02,585 INFO L226 Difference]: Without dead ends: 5105
[2022-02-18 13:59:02,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 182 SyntacticMatches, 7 SemanticMatches, 92 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2656 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=888, Invalid=7666, Unknown=6, NotChecked=182, Total=8742
[2022-02-18 13:59:02,587 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1120 mSDsluCounter, 8603 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 8939 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1602 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2022-02-18 13:59:02,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 8939 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1084 Invalid, 0 Unknown, 1602 Unchecked, 2.1s Time]
[2022-02-18 13:59:02,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5105 states.
[2022-02-18 13:59:02,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5105 to 2787.
[2022-02-18 13:59:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2785 states have (on average 1.9906642728904846) internal successors, (5544), 2786 states have internal predecessors, (5544), 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)
[2022-02-18 13:59:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 5544 transitions.
[2022-02-18 13:59:02,627 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 5544 transitions. Word has length 106
[2022-02-18 13:59:02,627 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 13:59:02,627 INFO L470 AbstractCegarLoop]: Abstraction has 2787 states and 5544 transitions.
[2022-02-18 13:59:02,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 13:59:02,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 5544 transitions.
[2022-02-18 13:59:02,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 13:59:02,630 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 13:59:02,630 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 13:59:02,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2022-02-18 13:59:02,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:59:02,848 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 13:59:02,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 13:59:02,848 INFO L85 PathProgramCache]: Analyzing trace with hash 432684052, now seen corresponding path program 16 times
[2022-02-18 13:59:02,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 13:59:02,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588851710]
[2022-02-18 13:59:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 13:59:02,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 13:59:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 13:59:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:59:04,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 13:59:04,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588851710]
[2022-02-18 13:59:04,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588851710] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 13:59:04,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125164447]
[2022-02-18 13:59:04,371 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-18 13:59:04,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 13:59:04,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 13:59:04,372 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 13:59:04,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2022-02-18 13:59:04,538 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-18 13:59:04,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 13:59:04,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 58 conjunts are in the unsatisfiable core
[2022-02-18 13:59:04,542 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 13:59:04,895 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 13:59:04,895 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
[2022-02-18 13:59:05,293 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 11 treesize of output 7
[2022-02-18 13:59:05,578 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 14 treesize of output 16
[2022-02-18 13:59:07,165 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:59:08,376 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 13:59:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:59:08,688 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 13:59:45,182 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1426 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1426) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 13:59:45,258 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:59:45,259 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 20 treesize of output 21
[2022-02-18 13:59:45,277 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 13:59:45,277 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 34 treesize of output 37
[2022-02-18 13:59:45,283 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 11 treesize of output 9
[2022-02-18 13:59:45,913 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 13:59:45,913 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 13 treesize of output 12
[2022-02-18 13:59:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 13:59:45,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125164447] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 13:59:45,925 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 13:59:45,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 13:59:45,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830323332]
[2022-02-18 13:59:45,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 13:59:45,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 13:59:45,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 13:59:45,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 13:59:45,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=3491, Unknown=10, NotChecked=122, Total=4032
[2022-02-18 13:59:45,927 INFO L87 Difference]: Start difference. First operand 2787 states and 5544 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 14:00:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 14:00:00,939 INFO L93 Difference]: Finished difference Result 5434 states and 10764 transitions.
[2022-02-18 14:00:00,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states.
[2022-02-18 14:00:00,940 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 14:00:00,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 14:00:00,946 INFO L225 Difference]: With dead ends: 5434
[2022-02-18 14:00:00,946 INFO L226 Difference]: Without dead ends: 5434
[2022-02-18 14:00:00,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 188 SyntacticMatches, 18 SemanticMatches, 106 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4036 ImplicationChecksByTransitivity, 50.8s TimeCoverageRelationStatistics Valid=1602, Invalid=9733, Unknown=11, NotChecked=210, Total=11556
[2022-02-18 14:00:00,947 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1587 mSDsluCounter, 7027 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 7366 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1057 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2022-02-18 14:00:00,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1587 Valid, 7366 Invalid, 2409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1281 Invalid, 0 Unknown, 1057 Unchecked, 3.1s Time]
[2022-02-18 14:00:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states.
[2022-02-18 14:00:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 2978.
[2022-02-18 14:00:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2976 states have (on average 1.9845430107526882) internal successors, (5906), 2977 states have internal predecessors, (5906), 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)
[2022-02-18 14:00:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 5906 transitions.
[2022-02-18 14:00:00,987 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 5906 transitions. Word has length 106
[2022-02-18 14:00:00,987 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 14:00:00,987 INFO L470 AbstractCegarLoop]: Abstraction has 2978 states and 5906 transitions.
[2022-02-18 14:00:00,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 14:00:00,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 5906 transitions.
[2022-02-18 14:00:00,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 14:00:00,989 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 14:00:00,990 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 14:00:01,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2022-02-18 14:00:01,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:00:01,204 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 14:00:01,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 14:00:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash 849782298, now seen corresponding path program 17 times
[2022-02-18 14:00:01,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 14:00:01,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609762082]
[2022-02-18 14:00:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:00:01,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 14:00:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:00:03,265 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:00:03,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 14:00:03,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609762082]
[2022-02-18 14:00:03,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609762082] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 14:00:03,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641659945]
[2022-02-18 14:00:03,266 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-18 14:00:03,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:00:03,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 14:00:03,267 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 14:00:03,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2022-02-18 14:00:03,382 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-18 14:00:03,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 14:00:03,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 14:00:03,386 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 14:00:03,878 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 14:00:03,879 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
[2022-02-18 14:00:04,375 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 11 treesize of output 7
[2022-02-18 14:00:04,707 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 14 treesize of output 16
[2022-02-18 14:00:06,532 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:00:07,803 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:00:08,037 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 14:00:08,158 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:00:08,158 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 14:00:32,178 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1477 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1477) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 14:00:32,288 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:00:32,289 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 20 treesize of output 21
[2022-02-18 14:00:32,324 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:00:32,325 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 34 treesize of output 37
[2022-02-18 14:00:32,333 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 11 treesize of output 9
[2022-02-18 14:00:33,051 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 14:00:33,052 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 13 treesize of output 12
[2022-02-18 14:00:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:00:33,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641659945] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 14:00:33,065 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 14:00:33,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 14:00:33,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860535932]
[2022-02-18 14:00:33,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 14:00:33,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 14:00:33,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 14:00:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 14:00:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=3534, Unknown=8, NotChecked=122, Total=4032
[2022-02-18 14:00:33,067 INFO L87 Difference]: Start difference. First operand 2978 states and 5906 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 14:01:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 14:01:28,981 INFO L93 Difference]: Finished difference Result 5613 states and 11172 transitions.
[2022-02-18 14:01:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states.
[2022-02-18 14:01:28,982 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 14:01:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 14:01:28,988 INFO L225 Difference]: With dead ends: 5613
[2022-02-18 14:01:28,988 INFO L226 Difference]: Without dead ends: 5613
[2022-02-18 14:01:28,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 189 SyntacticMatches, 30 SemanticMatches, 141 ConstructedPredicates, 1 IntricatePredicates, 3 DeprecatedPredicates, 6820 ImplicationChecksByTransitivity, 78.5s TimeCoverageRelationStatistics Valid=3731, Invalid=16276, Unknown=19, NotChecked=280, Total=20306
[2022-02-18 14:01:28,991 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 2380 mSDsluCounter, 9465 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2380 SdHoareTripleChecker+Valid, 9920 SdHoareTripleChecker+Invalid, 4470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2341 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2022-02-18 14:01:28,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2380 Valid, 9920 Invalid, 4470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2073 Invalid, 0 Unknown, 2341 Unchecked, 4.4s Time]
[2022-02-18 14:01:29,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5613 states.
[2022-02-18 14:01:29,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5613 to 3115.
[2022-02-18 14:01:29,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3113 states have (on average 1.982332155477032) internal successors, (6171), 3114 states have internal predecessors, (6171), 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)
[2022-02-18 14:01:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 6171 transitions.
[2022-02-18 14:01:29,068 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 6171 transitions. Word has length 106
[2022-02-18 14:01:29,068 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 14:01:29,069 INFO L470 AbstractCegarLoop]: Abstraction has 3115 states and 6171 transitions.
[2022-02-18 14:01:29,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 14:01:29,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 6171 transitions.
[2022-02-18 14:01:29,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 14:01:29,071 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 14:01:29,071 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 14:01:29,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2022-02-18 14:01:29,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:01:29,289 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 14:01:29,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 14:01:29,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1001582042, now seen corresponding path program 18 times
[2022-02-18 14:01:29,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 14:01:29,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769719975]
[2022-02-18 14:01:29,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:01:29,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 14:01:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:01:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:01:31,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 14:01:31,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769719975]
[2022-02-18 14:01:31,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769719975] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 14:01:31,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129476916]
[2022-02-18 14:01:31,040 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-18 14:01:31,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:01:31,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 14:01:31,041 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 14:01:31,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2022-02-18 14:01:31,194 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2022-02-18 14:01:31,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 14:01:31,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 14:01:31,198 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 14:01:31,632 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 14:01:31,633 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
[2022-02-18 14:01:32,173 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 11 treesize of output 7
[2022-02-18 14:01:32,597 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 14 treesize of output 16
[2022-02-18 14:01:34,513 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:01:35,728 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:01:35,927 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 14:01:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:01:36,076 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 14:01:53,513 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1528 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1528) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 14:01:53,569 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:01:53,569 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 20 treesize of output 21
[2022-02-18 14:01:53,589 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:01:53,590 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 34 treesize of output 37
[2022-02-18 14:01:53,596 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 11 treesize of output 9
[2022-02-18 14:01:54,131 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 14:01:54,132 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 13 treesize of output 12
[2022-02-18 14:01:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:01:54,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129476916] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 14:01:54,143 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 14:01:54,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 14:01:54,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935599753]
[2022-02-18 14:01:54,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 14:01:54,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 14:01:54,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 14:01:54,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 14:01:54,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=3566, Unknown=4, NotChecked=122, Total=4032
[2022-02-18 14:01:54,145 INFO L87 Difference]: Start difference. First operand 3115 states and 6171 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 14:02:15,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 14:02:15,958 INFO L93 Difference]: Finished difference Result 6124 states and 12171 transitions.
[2022-02-18 14:02:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states.
[2022-02-18 14:02:15,958 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 14:02:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 14:02:15,967 INFO L225 Difference]: With dead ends: 6124
[2022-02-18 14:02:15,968 INFO L226 Difference]: Without dead ends: 6124
[2022-02-18 14:02:15,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 194 SyntacticMatches, 27 SemanticMatches, 142 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6798 ImplicationChecksByTransitivity, 38.9s TimeCoverageRelationStatistics Valid=3671, Invalid=16635, Unknown=4, NotChecked=282, Total=20592
[2022-02-18 14:02:15,970 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 2561 mSDsluCounter, 7809 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2561 SdHoareTripleChecker+Valid, 8201 SdHoareTripleChecker+Invalid, 3870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1994 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2022-02-18 14:02:15,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2561 Valid, 8201 Invalid, 3870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1754 Invalid, 0 Unknown, 1994 Unchecked, 3.3s Time]
[2022-02-18 14:02:15,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6124 states.
[2022-02-18 14:02:16,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6124 to 3245.
[2022-02-18 14:02:16,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3245 states, 3243 states have (on average 1.980573543015726) internal successors, (6423), 3244 states have internal predecessors, (6423), 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)
[2022-02-18 14:02:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 6423 transitions.
[2022-02-18 14:02:16,058 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 6423 transitions. Word has length 106
[2022-02-18 14:02:16,058 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 14:02:16,058 INFO L470 AbstractCegarLoop]: Abstraction has 3245 states and 6423 transitions.
[2022-02-18 14:02:16,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 14:02:16,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 6423 transitions.
[2022-02-18 14:02:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2022-02-18 14:02:16,061 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 14:02:16,061 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 14:02:16,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2022-02-18 14:02:16,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:02:16,283 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 14:02:16,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 14:02:16,284 INFO L85 PathProgramCache]: Analyzing trace with hash -289912932, now seen corresponding path program 19 times
[2022-02-18 14:02:16,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 14:02:16,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415027981]
[2022-02-18 14:02:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:02:16,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 14:02:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:02:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:02:17,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 14:02:17,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415027981]
[2022-02-18 14:02:17,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415027981] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 14:02:17,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052432683]
[2022-02-18 14:02:17,726 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-18 14:02:17,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:02:17,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 14:02:17,727 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 14:02:17,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2022-02-18 14:02:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:02:17,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 14:02:17,852 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 14:02:18,190 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 14:02:18,190 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
[2022-02-18 14:02:18,547 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 11 treesize of output 7
[2022-02-18 14:02:18,795 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 14 treesize of output 16
[2022-02-18 14:02:20,094 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:02:21,265 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:02:21,431 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 14:02:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:02:21,533 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 14:02:31,534 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1579 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1579) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 14:02:31,587 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:02:31,587 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 20 treesize of output 21
[2022-02-18 14:02:31,604 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:02:31,605 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 34 treesize of output 37
[2022-02-18 14:02:31,611 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 11 treesize of output 9
[2022-02-18 14:02:32,119 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 14:02:32,119 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 13 treesize of output 12
[2022-02-18 14:02:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:02:32,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052432683] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 14:02:32,130 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 14:02:32,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 14:02:32,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341048048]
[2022-02-18 14:02:32,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 14:02:32,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 14:02:32,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 14:02:32,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 14:02:32,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3571, Unknown=3, NotChecked=122, Total=4032
[2022-02-18 14:02:32,132 INFO L87 Difference]: Start difference. First operand 3245 states and 6423 transitions. Second operand has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 14:03:05,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 14:03:05,570 INFO L93 Difference]: Finished difference Result 9199 states and 18357 transitions.
[2022-02-18 14:03:05,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states.
[2022-02-18 14:03:05,571 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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 106
[2022-02-18 14:03:05,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 14:03:05,582 INFO L225 Difference]: With dead ends: 9199
[2022-02-18 14:03:05,583 INFO L226 Difference]: Without dead ends: 9199
[2022-02-18 14:03:05,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 197 SyntacticMatches, 38 SemanticMatches, 150 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8877 ImplicationChecksByTransitivity, 41.5s TimeCoverageRelationStatistics Valid=3958, Invalid=18690, Unknown=6, NotChecked=298, Total=22952
[2022-02-18 14:03:05,584 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 4073 mSDsluCounter, 13683 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 14247 SdHoareTripleChecker+Invalid, 4215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2015 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2022-02-18 14:03:05,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4073 Valid, 14247 Invalid, 4215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2092 Invalid, 0 Unknown, 2015 Unchecked, 3.9s Time]
[2022-02-18 14:03:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9199 states.
[2022-02-18 14:03:05,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9199 to 3383.
[2022-02-18 14:03:05,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 3381 states have (on average 1.9798876072167997) internal successors, (6694), 3382 states have internal predecessors, (6694), 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)
[2022-02-18 14:03:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 6694 transitions.
[2022-02-18 14:03:05,674 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 6694 transitions. Word has length 106
[2022-02-18 14:03:05,674 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 14:03:05,675 INFO L470 AbstractCegarLoop]: Abstraction has 3383 states and 6694 transitions.
[2022-02-18 14:03:05,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.390625) internal successors, (281), 64 states have internal predecessors, (281), 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)
[2022-02-18 14:03:05,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 6694 transitions.
[2022-02-18 14:03:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2022-02-18 14:03:05,677 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 14:03:05,677 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 14:03:05,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2022-02-18 14:03:05,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:03:05,892 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 14:03:05,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 14:03:05,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1150805599, now seen corresponding path program 1 times
[2022-02-18 14:03:05,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 14:03:05,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280013444]
[2022-02-18 14:03:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:03:05,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 14:03:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:03:06,585 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:06,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 14:03:06,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280013444]
[2022-02-18 14:03:06,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280013444] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 14:03:06,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599576348]
[2022-02-18 14:03:06,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:03:06,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:03:06,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 14:03:06,587 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 14:03:06,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2022-02-18 14:03:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:03:06,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 34 conjunts are in the unsatisfiable core
[2022-02-18 14:03:06,707 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 14:03:08,505 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:03:09,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 12
[2022-02-18 14:03:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:09,256 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 14:03:10,001 INFO L353 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size
[2022-02-18 14:03:10,001 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 44 treesize of output 32
[2022-02-18 14:03:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:10,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599576348] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 14:03:10,154 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 14:03:10,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 16] total 36
[2022-02-18 14:03:10,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371414531]
[2022-02-18 14:03:10,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 14:03:10,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2022-02-18 14:03:10,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 14:03:10,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2022-02-18 14:03:10,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1110, Unknown=0, NotChecked=0, Total=1260
[2022-02-18 14:03:10,155 INFO L87 Difference]: Start difference. First operand 3383 states and 6694 transitions. Second operand has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 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)
[2022-02-18 14:03:14,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 14:03:14,206 INFO L93 Difference]: Finished difference Result 5735 states and 11393 transitions.
[2022-02-18 14:03:14,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states.
[2022-02-18 14:03:14,206 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116
[2022-02-18 14:03:14,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 14:03:14,212 INFO L225 Difference]: With dead ends: 5735
[2022-02-18 14:03:14,212 INFO L226 Difference]: Without dead ends: 4578
[2022-02-18 14:03:14,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 230 SyntacticMatches, 20 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1155 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=709, Invalid=2831, Unknown=0, NotChecked=0, Total=3540
[2022-02-18 14:03:14,213 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 2001 mSDsluCounter, 6018 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 6452 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 207 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2022-02-18 14:03:14,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2001 Valid, 6452 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 816 Invalid, 0 Unknown, 207 Unchecked, 1.3s Time]
[2022-02-18 14:03:14,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states.
[2022-02-18 14:03:14,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 3583.
[2022-02-18 14:03:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3581 states have (on average 1.9667690589220888) internal successors, (7043), 3582 states have internal predecessors, (7043), 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)
[2022-02-18 14:03:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 7043 transitions.
[2022-02-18 14:03:14,250 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 7043 transitions. Word has length 116
[2022-02-18 14:03:14,250 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 14:03:14,250 INFO L470 AbstractCegarLoop]: Abstraction has 3583 states and 7043 transitions.
[2022-02-18 14:03:14,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.805555555555555) internal successors, (245), 36 states have internal predecessors, (245), 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)
[2022-02-18 14:03:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 7043 transitions.
[2022-02-18 14:03:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2022-02-18 14:03:14,252 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 14:03:14,253 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 14:03:14,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2022-02-18 14:03:14,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65
[2022-02-18 14:03:14,468 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 14:03:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 14:03:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1486022065, now seen corresponding path program 20 times
[2022-02-18 14:03:14,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 14:03:14,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854789434]
[2022-02-18 14:03:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:03:14,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 14:03:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:03:16,578 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:16,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 14:03:16,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854789434]
[2022-02-18 14:03:16,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854789434] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 14:03:16,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708452538]
[2022-02-18 14:03:16,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-18 14:03:16,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:03:16,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 14:03:16,580 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 14:03:16,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2022-02-18 14:03:16,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-18 14:03:16,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 14:03:16,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 14:03:16,708 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 14:03:17,146 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 14:03:17,147 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
[2022-02-18 14:03:17,654 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 11 treesize of output 7
[2022-02-18 14:03:17,996 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 14 treesize of output 16
[2022-02-18 14:03:19,833 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:03:20,806 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:03:21,007 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 14:03:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:21,127 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 14:03:34,180 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1676 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1676) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 14:03:34,246 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:03:34,247 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 20 treesize of output 21
[2022-02-18 14:03:34,262 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:03:34,262 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 34 treesize of output 37
[2022-02-18 14:03:34,267 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 11 treesize of output 9
[2022-02-18 14:03:34,663 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 14:03:34,663 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 13 treesize of output 12
[2022-02-18 14:03:34,672 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:34,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708452538] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 14:03:34,672 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 14:03:34,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 14:03:34,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234813428]
[2022-02-18 14:03:34,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 14:03:34,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 14:03:34,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 14:03:34,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 14:03:34,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3569, Unknown=5, NotChecked=122, Total=4032
[2022-02-18 14:03:34,675 INFO L87 Difference]: Start difference. First operand 3583 states and 7043 transitions. Second operand has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 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)
[2022-02-18 14:03:40,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 14:03:40,576 INFO L93 Difference]: Finished difference Result 5252 states and 10302 transitions.
[2022-02-18 14:03:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states.
[2022-02-18 14:03:40,577 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 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 117
[2022-02-18 14:03:40,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 14:03:40,582 INFO L225 Difference]: With dead ends: 5252
[2022-02-18 14:03:40,582 INFO L226 Difference]: Without dead ends: 5252
[2022-02-18 14:03:40,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 199 SyntacticMatches, 8 SemanticMatches, 91 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2580 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=945, Invalid=7426, Unknown=5, NotChecked=180, Total=8556
[2022-02-18 14:03:40,583 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 1044 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 9178 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1560 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2022-02-18 14:03:40,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1044 Valid, 9178 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1387 Invalid, 0 Unknown, 1560 Unchecked, 1.9s Time]
[2022-02-18 14:03:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5252 states.
[2022-02-18 14:03:40,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5252 to 3706.
[2022-02-18 14:03:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3704 states have (on average 1.964902807775378) internal successors, (7278), 3705 states have internal predecessors, (7278), 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)
[2022-02-18 14:03:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 7278 transitions.
[2022-02-18 14:03:40,639 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 7278 transitions. Word has length 117
[2022-02-18 14:03:40,639 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 14:03:40,639 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 7278 transitions.
[2022-02-18 14:03:40,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 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)
[2022-02-18 14:03:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 7278 transitions.
[2022-02-18 14:03:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2022-02-18 14:03:40,642 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 14:03:40,642 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 14:03:40,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2022-02-18 14:03:40,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66
[2022-02-18 14:03:40,858 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 14:03:40,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 14:03:40,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1939234817, now seen corresponding path program 21 times
[2022-02-18 14:03:40,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 14:03:40,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655585613]
[2022-02-18 14:03:40,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:03:40,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 14:03:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:03:42,081 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:42,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 14:03:42,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655585613]
[2022-02-18 14:03:42,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655585613] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 14:03:42,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386528412]
[2022-02-18 14:03:42,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-18 14:03:42,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:03:42,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 14:03:42,083 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 14:03:42,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2022-02-18 14:03:42,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2022-02-18 14:03:42,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-18 14:03:42,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 14:03:42,259 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 14:03:42,731 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 14:03:42,731 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
[2022-02-18 14:03:43,299 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 11 treesize of output 7
[2022-02-18 14:03:43,637 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 14 treesize of output 16
[2022-02-18 14:03:45,443 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:03:46,956 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:03:47,370 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 14:03:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:47,532 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 14:03:56,156 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1727 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1727) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 14:03:56,226 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:03:56,227 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 20 treesize of output 21
[2022-02-18 14:03:56,251 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:03:56,251 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 34 treesize of output 37
[2022-02-18 14:03:56,258 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 11 treesize of output 9
[2022-02-18 14:03:57,034 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 14:03:57,034 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 13 treesize of output 12
[2022-02-18 14:03:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:03:57,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386528412] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 14:03:57,048 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 14:03:57,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 14:03:57,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554422832]
[2022-02-18 14:03:57,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 14:03:57,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 14:03:57,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 14:03:57,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 14:03:57,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3571, Unknown=3, NotChecked=122, Total=4032
[2022-02-18 14:03:57,050 INFO L87 Difference]: Start difference. First operand 3706 states and 7278 transitions. Second operand has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 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)
[2022-02-18 14:04:24,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 14:04:24,864 INFO L93 Difference]: Finished difference Result 5586 states and 11006 transitions.
[2022-02-18 14:04:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states.
[2022-02-18 14:04:24,865 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 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 117
[2022-02-18 14:04:24,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 14:04:24,872 INFO L225 Difference]: With dead ends: 5586
[2022-02-18 14:04:24,872 INFO L226 Difference]: Without dead ends: 5586
[2022-02-18 14:04:24,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 199 SyntacticMatches, 11 SemanticMatches, 93 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2859 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=856, Invalid=7881, Unknown=9, NotChecked=184, Total=8930
[2022-02-18 14:04:24,873 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 756 mSDsluCounter, 9846 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 10163 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1283 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2022-02-18 14:04:24,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 10163 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1273 Invalid, 0 Unknown, 1283 Unchecked, 2.9s Time]
[2022-02-18 14:04:24,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5586 states.
[2022-02-18 14:04:24,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5586 to 3706.
[2022-02-18 14:04:24,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3704 states have (on average 1.964902807775378) internal successors, (7278), 3705 states have internal predecessors, (7278), 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)
[2022-02-18 14:04:24,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 7278 transitions.
[2022-02-18 14:04:24,923 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 7278 transitions. Word has length 117
[2022-02-18 14:04:24,923 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 14:04:24,923 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 7278 transitions.
[2022-02-18 14:04:24,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 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)
[2022-02-18 14:04:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 7278 transitions.
[2022-02-18 14:04:24,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2022-02-18 14:04:24,926 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 14:04:24,926 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 14:04:24,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0
[2022-02-18 14:04:25,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:04:25,140 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] ===
[2022-02-18 14:04:25,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 14:04:25,140 INFO L85 PathProgramCache]: Analyzing trace with hash 478121700, now seen corresponding path program 1 times
[2022-02-18 14:04:25,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 14:04:25,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141505080]
[2022-02-18 14:04:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:04:25,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 14:04:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:04:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:04:27,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 14:04:27,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141505080]
[2022-02-18 14:04:27,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141505080] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-18 14:04:27,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868953929]
[2022-02-18 14:04:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 14:04:27,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:04:27,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 14:04:27,111 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-02-18 14:04:27,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2022-02-18 14:04:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 14:04:27,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 56 conjunts are in the unsatisfiable core
[2022-02-18 14:04:27,236 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-18 14:04:27,684 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2022-02-18 14:04:27,684 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
[2022-02-18 14:04:28,062 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 11 treesize of output 7
[2022-02-18 14:04:28,305 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 14 treesize of output 16
[2022-02-18 14:04:29,885 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:04:30,985 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 16
[2022-02-18 14:04:31,244 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7
[2022-02-18 14:04:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:04:31,336 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-18 14:04:47,227 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1780 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#tid~0#1.base| v_ArrVal_1780) |c_~#pqb~0.base|) |c_~#pqb~0.offset|) 1))) is different from false
[2022-02-18 14:04:47,291 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:04:47,291 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 20 treesize of output 21
[2022-02-18 14:04:47,313 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-02-18 14:04:47,313 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 34 treesize of output 37
[2022-02-18 14:04:47,320 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 11 treesize of output 9
[2022-02-18 14:04:48,013 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-02-18 14:04:48,013 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 13 treesize of output 12
[2022-02-18 14:04:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 14:04:48,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868953929] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-18 14:04:48,025 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-18 14:04:48,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 64
[2022-02-18 14:04:48,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214416536]
[2022-02-18 14:04:48,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-18 14:04:48,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states
[2022-02-18 14:04:48,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 14:04:48,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants.
[2022-02-18 14:04:48,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=3538, Unknown=4, NotChecked=122, Total=4032
[2022-02-18 14:04:48,028 INFO L87 Difference]: Start difference. First operand 3706 states and 7278 transitions. Second operand has 64 states, 64 states have (on average 4.734375) internal successors, (303), 64 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
Received shutdown request...
[2022-02-18 14:06:19,603 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-18 14:06:19,625 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
[2022-02-18 14:06:20,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states.
[2022-02-18 14:06:20,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 207 SyntacticMatches, 12 SemanticMatches, 116 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4142 ImplicationChecksByTransitivity, 106.5s TimeCoverageRelationStatistics Valid=2070, Invalid=11472, Unknown=34, NotChecked=230, Total=13806
[2022-02-18 14:06:20,184 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1912 mSDsluCounter, 5499 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 5859 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1422 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2022-02-18 14:06:20,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1912 Valid, 5859 Invalid, 2565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1082 Invalid, 0 Unknown, 1422 Unchecked, 2.3s Time]
[2022-02-18 14:06:20,185 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2022-02-18 14:06:20,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2022-02-18 14:06:20,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-18 14:06:20,386 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (3706states) and FLOYD_HOARE automaton (currently 59 states, 64 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 118 known predicates.
[2022-02-18 14:06:20,387 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining)
[2022-02-18 14:06:20,387 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining)
[2022-02-18 14:06:20,388 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2022-02-18 14:06:20,388 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2022-02-18 14:06:20,390 INFO L732 BasicCegarLoop]: Path program histogram: [21, 18, 17, 7, 1, 1, 1, 1, 1, 1]
[2022-02-18 14:06:20,392 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-18 14:06:20,392 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-18 14:06:20,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 02:06:20 BasicIcfg
[2022-02-18 14:06:20,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-18 14:06:20,393 INFO L158 Benchmark]: Toolchain (without parser) took 869406.93ms. Allocated memory was 255.9MB in the beginning and 1.0GB in the end (delta: 750.8MB). Free memory was 203.5MB in the beginning and 701.5MB in the end (delta: -498.0MB). Peak memory consumption was 252.0MB. Max. memory is 8.0GB.
[2022-02-18 14:06:20,394 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 221.0MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-18 14:06:20,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.38ms. Allocated memory was 255.9MB in the beginning and 385.9MB in the end (delta: 130.0MB). Free memory was 203.3MB in the beginning and 352.7MB in the end (delta: -149.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB.
[2022-02-18 14:06:20,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.57ms. Allocated memory is still 385.9MB. Free memory was 352.7MB in the beginning and 350.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-18 14:06:20,394 INFO L158 Benchmark]: Boogie Preprocessor took 16.62ms. Allocated memory is still 385.9MB. Free memory was 350.6MB in the beginning and 349.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-18 14:06:20,394 INFO L158 Benchmark]: RCFGBuilder took 386.22ms. Allocated memory is still 385.9MB. Free memory was 349.0MB in the beginning and 334.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2022-02-18 14:06:20,394 INFO L158 Benchmark]: TraceAbstraction took 868604.34ms. Allocated memory was 385.9MB in the beginning and 1.0GB in the end (delta: 620.8MB). Free memory was 333.8MB in the beginning and 701.5MB in the end (delta: -367.7MB). Peak memory consumption was 254.1MB. Max. memory is 8.0GB.
[2022-02-18 14:06:20,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 221.0MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 368.38ms. Allocated memory was 255.9MB in the beginning and 385.9MB in the end (delta: 130.0MB). Free memory was 203.3MB in the beginning and 352.7MB in the end (delta: -149.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 27.57ms. Allocated memory is still 385.9MB. Free memory was 352.7MB in the beginning and 350.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 16.62ms. Allocated memory is still 385.9MB. Free memory was 350.6MB in the beginning and 349.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 386.22ms. Allocated memory is still 385.9MB. Free memory was 349.0MB in the beginning and 334.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
* TraceAbstraction took 868604.34ms. Allocated memory was 385.9MB in the beginning and 1.0GB in the end (delta: 620.8MB). Free memory was 333.8MB in the beginning and 701.5MB in the end (delta: -367.7MB). Peak memory consumption was 254.1MB. 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: 19]: Timeout (TraceAbstraction)
Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3706states) and FLOYD_HOARE automaton (currently 59 states, 64 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 118 known predicates.
- TimeoutResultAtElement [Line: 748]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (3706states) and FLOYD_HOARE automaton (currently 59 states, 64 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 118 known predicates.
- TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction)
Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3706states) and FLOYD_HOARE automaton (currently 59 states, 64 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 118 known predicates.
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 3 procedures, 190 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 868.5s, OverallIterations: 69, TraceHistogramMax: 3, PathProgramHistogramMax: 21, EmptinessCheckTime: 0.2s, AutomataDifference: 509.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120563 SdHoareTripleChecker+Valid, 66.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120563 mSDsluCounter, 338467 SdHoareTripleChecker+Invalid, 60.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 33824 IncrementalHoareTripleChecker+Unchecked, 312000 mSDsCounter, 3737 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82568 IncrementalHoareTripleChecker+Invalid, 120129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3737 mSolverCounterUnsat, 26645 mSDtfsCounter, 82568 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9626 GetRequests, 4581 SyntacticMatches, 317 SemanticMatches, 4727 ConstructedPredicates, 21 IntricatePredicates, 6 DeprecatedPredicates, 147777 ImplicationChecksByTransitivity, 709.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9370occurred in iteration=19, InterpolantAutomatonStates: 3131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 68 MinimizatonAttempts, 470093 StatesRemovedByMinimization, 67 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 342.8s InterpolantComputationTime, 8473 NumberOfCodeBlocks, 8473 NumberOfCodeBlocksAsserted, 110 NumberOfCheckSat, 10686 ConstructedInterpolants, 990 QuantifiedInterpolants, 116566 SizeOfPredicates, 558 NumberOfNonLiveVariables, 5789 ConjunctsInSsa, 1220 ConjunctsInUnsatCore, 114 InterpolantComputations, 47 PerfectInterpolantSequences, 240/1119 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