/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 01:31:02,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 01:31:02,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 01:31:02,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 01:31:02,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 01:31:02,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 01:31:02,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 01:31:02,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 01:31:02,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 01:31:02,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 01:31:02,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 01:31:02,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 01:31:02,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 01:31:02,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 01:31:02,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 01:31:02,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 01:31:02,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 01:31:02,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 01:31:02,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 01:31:02,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 01:31:02,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 01:31:02,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 01:31:02,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 01:31:02,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 01:31:02,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 01:31:02,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 01:31:02,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 01:31:02,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 01:31:02,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-18 01:31:02,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 01:31:02,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 01:31:02,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 01:31:02,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 01:31:02,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 01:31:02,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 01:31:02,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 01:31:02,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 01:31:02,297 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 01:31:02,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 01:31:02,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 01:31:02,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 01:31:02,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 01:31:02,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 01:31:02,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 01:31:02,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:31:02,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 01:31:02,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 01:31:02,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 01:31:02,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 01:31:02,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 01:31:02,300 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 01:31:02,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 01:31:02,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 01:31:02,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 01:31:02,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 01:31:02,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 01:31:02,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 01:31:02,505 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 01:31:02,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2022-01-18 01:31:02,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a414e2c0/83edc81cc8694e76b166b6eb2136222b/FLAG9b69025bd [2022-01-18 01:31:02,924 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 01:31:02,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2022-01-18 01:31:02,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a414e2c0/83edc81cc8694e76b166b6eb2136222b/FLAG9b69025bd [2022-01-18 01:31:02,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a414e2c0/83edc81cc8694e76b166b6eb2136222b [2022-01-18 01:31:02,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 01:31:02,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 01:31:02,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 01:31:02,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 01:31:02,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 01:31:02,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:31:02" (1/1) ... [2022-01-18 01:31:02,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1356a485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:02, skipping insertion in model container [2022-01-18 01:31:02,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:31:02" (1/1) ... [2022-01-18 01:31:02,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 01:31:02,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 01:31:03,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-01-18 01:31:03,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:31:03,226 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 01:31:03,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-01-18 01:31:03,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:31:03,280 INFO L208 MainTranslator]: Completed translation [2022-01-18 01:31:03,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03 WrapperNode [2022-01-18 01:31:03,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 01:31:03,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 01:31:03,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 01:31:03,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 01:31:03,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,328 INFO L137 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 297 [2022-01-18 01:31:03,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 01:31:03,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 01:31:03,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 01:31:03,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 01:31:03,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 01:31:03,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 01:31:03,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 01:31:03,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 01:31:03,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (1/1) ... [2022-01-18 01:31:03,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:31:03,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:31:03,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 01:31:03,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 01:31:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 01:31:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 01:31:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 01:31:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 01:31:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 01:31:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 01:31:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 01:31:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 01:31:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 01:31:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 01:31:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 01:31:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 01:31:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 01:31:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 01:31:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 01:31:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 01:31:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 01:31:03,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 01:31:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 01:31:03,417 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 01:31:03,532 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 01:31:03,533 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 01:31:03,851 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 01:31:04,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 01:31:04,001 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-18 01:31:04,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:31:04 BoogieIcfgContainer [2022-01-18 01:31:04,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 01:31:04,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 01:31:04,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 01:31:04,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 01:31:04,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:31:02" (1/3) ... [2022-01-18 01:31:04,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682c1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:31:04, skipping insertion in model container [2022-01-18 01:31:04,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:31:03" (2/3) ... [2022-01-18 01:31:04,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682c1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:31:04, skipping insertion in model container [2022-01-18 01:31:04,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:31:04" (3/3) ... [2022-01-18 01:31:04,008 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2022-01-18 01:31:04,011 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 01:31:04,011 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 01:31:04,011 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 01:31:04,011 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 01:31:04,042 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,042 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,042 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,042 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,043 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,044 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,045 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,046 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,047 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,050 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,057 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,057 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,057 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,057 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,062 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,062 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,066 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,070 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:31:04,073 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 01:31:04,100 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 01:31:04,104 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 01:31:04,105 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 01:31:04,114 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 204 places, 206 transitions, 444 flow [2022-01-18 01:31:04,924 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 21756 states, 21755 states have (on average 4.979269133532521) internal successors, (108324), 21755 states have internal predecessors, (108324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 21756 states, 21755 states have (on average 4.979269133532521) internal successors, (108324), 21755 states have internal predecessors, (108324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:05,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-18 01:31:05,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:31:05,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:31:05,165 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:31:05,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:31:05,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1098836800, now seen corresponding path program 1 times [2022-01-18 01:31:05,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:31:05,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203626338] [2022-01-18 01:31:05,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:05,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:31:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:05,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:31:05,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:31:05,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203626338] [2022-01-18 01:31:05,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203626338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:31:05,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:31:05,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 01:31:05,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843070153] [2022-01-18 01:31:05,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:31:05,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 01:31:05,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:31:05,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 01:31:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 01:31:05,474 INFO L87 Difference]: Start difference. First operand has 21756 states, 21755 states have (on average 4.979269133532521) internal successors, (108324), 21755 states have internal predecessors, (108324), 0 states have call successors, (0), 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 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:31:05,821 INFO L93 Difference]: Finished difference Result 21756 states and 98245 transitions. [2022-01-18 01:31:05,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 01:31:05,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-01-18 01:31:05,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:31:05,984 INFO L225 Difference]: With dead ends: 21756 [2022-01-18 01:31:05,985 INFO L226 Difference]: Without dead ends: 21751 [2022-01-18 01:31:05,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 01:31:05,988 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:31:05,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:31:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21751 states. [2022-01-18 01:31:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21751 to 21751. [2022-01-18 01:31:06,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21751 states, 21750 states have (on average 4.5167816091954025) internal successors, (98240), 21750 states have internal predecessors, (98240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21751 states to 21751 states and 98240 transitions. [2022-01-18 01:31:07,175 INFO L78 Accepts]: Start accepts. Automaton has 21751 states and 98240 transitions. Word has length 147 [2022-01-18 01:31:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:31:07,176 INFO L470 AbstractCegarLoop]: Abstraction has 21751 states and 98240 transitions. [2022-01-18 01:31:07,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 21751 states and 98240 transitions. [2022-01-18 01:31:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-01-18 01:31:07,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:31:07,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:31:07,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 01:31:07,260 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:31:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:31:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1178513303, now seen corresponding path program 1 times [2022-01-18 01:31:07,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:31:07,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831299697] [2022-01-18 01:31:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:07,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:31:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:07,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:31:07,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:31:07,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831299697] [2022-01-18 01:31:07,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831299697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:31:07,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:31:07,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 01:31:07,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060672036] [2022-01-18 01:31:07,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:31:07,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 01:31:07,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:31:07,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 01:31:07,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 01:31:07,407 INFO L87 Difference]: Start difference. First operand 21751 states and 98240 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:07,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:31:07,993 INFO L93 Difference]: Finished difference Result 43397 states and 196374 transitions. [2022-01-18 01:31:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 01:31:07,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2022-01-18 01:31:07,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:31:08,418 INFO L225 Difference]: With dead ends: 43397 [2022-01-18 01:31:08,419 INFO L226 Difference]: Without dead ends: 42115 [2022-01-18 01:31:08,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:31:08,420 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 142 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:31:08,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 534 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:31:08,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42115 states. [2022-01-18 01:31:09,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42115 to 24370. [2022-01-18 01:31:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24370 states, 24369 states have (on average 4.496696622758423) internal successors, (109580), 24369 states have internal predecessors, (109580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:09,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24370 states to 24370 states and 109580 transitions. [2022-01-18 01:31:09,725 INFO L78 Accepts]: Start accepts. Automaton has 24370 states and 109580 transitions. Word has length 151 [2022-01-18 01:31:09,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:31:09,726 INFO L470 AbstractCegarLoop]: Abstraction has 24370 states and 109580 transitions. [2022-01-18 01:31:09,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:09,726 INFO L276 IsEmpty]: Start isEmpty. Operand 24370 states and 109580 transitions. [2022-01-18 01:31:09,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-18 01:31:09,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:31:09,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:31:09,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 01:31:09,830 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:31:09,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:31:09,830 INFO L85 PathProgramCache]: Analyzing trace with hash 133319343, now seen corresponding path program 1 times [2022-01-18 01:31:09,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:31:09,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406916755] [2022-01-18 01:31:09,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:09,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:31:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:10,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:31:10,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:31:10,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406916755] [2022-01-18 01:31:10,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406916755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:31:10,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:31:10,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:31:10,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381214576] [2022-01-18 01:31:10,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:31:10,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:31:10,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:31:10,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:31:10,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:31:10,109 INFO L87 Difference]: Start difference. First operand 24370 states and 109580 transitions. Second operand has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:31:10,848 INFO L93 Difference]: Finished difference Result 43628 states and 191858 transitions. [2022-01-18 01:31:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:31:10,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-01-18 01:31:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:31:10,968 INFO L225 Difference]: With dead ends: 43628 [2022-01-18 01:31:10,969 INFO L226 Difference]: Without dead ends: 24376 [2022-01-18 01:31:10,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:31:10,970 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 678 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:31:10,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [678 Valid, 1018 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:31:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24376 states. [2022-01-18 01:31:11,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24376 to 24371. [2022-01-18 01:31:11,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24371 states, 24370 states have (on average 4.496553139105457) internal successors, (109581), 24370 states have internal predecessors, (109581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:11,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24371 states to 24371 states and 109581 transitions. [2022-01-18 01:31:11,851 INFO L78 Accepts]: Start accepts. Automaton has 24371 states and 109581 transitions. Word has length 155 [2022-01-18 01:31:11,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:31:11,851 INFO L470 AbstractCegarLoop]: Abstraction has 24371 states and 109581 transitions. [2022-01-18 01:31:11,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 24371 states and 109581 transitions. [2022-01-18 01:31:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-18 01:31:11,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:31:11,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:31:11,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 01:31:11,920 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:31:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:31:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1337997160, now seen corresponding path program 1 times [2022-01-18 01:31:11,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:31:11,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713854965] [2022-01-18 01:31:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:11,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:31:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:31:12,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:31:12,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713854965] [2022-01-18 01:31:12,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713854965] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:31:12,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388199870] [2022-01-18 01:31:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:12,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:31:12,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:31:12,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:31:12,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 01:31:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:12,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-18 01:31:12,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:31:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:31:13,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:31:13,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:31:13,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388199870] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:31:13,244 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:31:13,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 21 [2022-01-18 01:31:13,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510491925] [2022-01-18 01:31:13,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:31:13,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 01:31:13,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:31:13,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 01:31:13,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:31:13,246 INFO L87 Difference]: Start difference. First operand 24371 states and 109581 transitions. Second operand has 21 states, 21 states have (on average 15.476190476190476) internal successors, (325), 21 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:15,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:31:15,088 INFO L93 Difference]: Finished difference Result 121277 states and 542986 transitions. [2022-01-18 01:31:15,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 01:31:15,088 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 15.476190476190476) internal successors, (325), 21 states have internal predecessors, (325), 0 states have call successors, (0), 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 162 [2022-01-18 01:31:15,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:31:15,908 INFO L225 Difference]: With dead ends: 121277 [2022-01-18 01:31:15,908 INFO L226 Difference]: Without dead ends: 90559 [2022-01-18 01:31:15,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=386, Invalid=1594, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 01:31:15,910 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 1749 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:31:15,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 2557 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:31:16,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90559 states. [2022-01-18 01:31:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90559 to 56472. [2022-01-18 01:31:17,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56472 states, 56471 states have (on average 4.5707531299250945) internal successors, (258115), 56471 states have internal predecessors, (258115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56472 states to 56472 states and 258115 transitions. [2022-01-18 01:31:18,537 INFO L78 Accepts]: Start accepts. Automaton has 56472 states and 258115 transitions. Word has length 162 [2022-01-18 01:31:18,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:31:18,537 INFO L470 AbstractCegarLoop]: Abstraction has 56472 states and 258115 transitions. [2022-01-18 01:31:18,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 15.476190476190476) internal successors, (325), 21 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 56472 states and 258115 transitions. [2022-01-18 01:31:18,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:31:18,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:31:18,711 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:31:18,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 01:31:18,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:31:18,912 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:31:18,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:31:18,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1130023205, now seen corresponding path program 1 times [2022-01-18 01:31:18,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:31:18,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012475769] [2022-01-18 01:31:18,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:18,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:31:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:31:19,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:31:19,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012475769] [2022-01-18 01:31:19,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012475769] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:31:19,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923736076] [2022-01-18 01:31:19,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:19,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:31:19,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:31:19,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:31:19,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 01:31:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:19,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 69 conjunts are in the unsatisfiable core [2022-01-18 01:31:19,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:31:19,474 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:31:19,655 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 01:31:19,655 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 01:31:20,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:31:20,345 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 01:31:20,428 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 20 treesize of output 22 [2022-01-18 01:31:20,499 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:31:20,499 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 25 treesize of output 25 [2022-01-18 01:31:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 01:31:21,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:31:21,503 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 214 treesize of output 160 [2022-01-18 01:31:21,506 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 160 treesize of output 132 [2022-01-18 01:31:21,509 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 132 treesize of output 118 [2022-01-18 01:31:21,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:31:21,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:31:22,199 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 01:31:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:31:22,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923736076] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:31:22,236 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:31:22,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 20] total 44 [2022-01-18 01:31:22,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289693075] [2022-01-18 01:31:22,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:31:22,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-01-18 01:31:22,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:31:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-01-18 01:31:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1715, Unknown=6, NotChecked=0, Total=1892 [2022-01-18 01:31:22,238 INFO L87 Difference]: Start difference. First operand 56472 states and 258115 transitions. Second operand has 44 states, 44 states have (on average 8.886363636363637) internal successors, (391), 44 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:24,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:31:24,443 INFO L93 Difference]: Finished difference Result 100263 states and 459317 transitions. [2022-01-18 01:31:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 01:31:24,444 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.886363636363637) internal successors, (391), 44 states have internal predecessors, (391), 0 states have call successors, (0), 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 173 [2022-01-18 01:31:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:31:25,192 INFO L225 Difference]: With dead ends: 100263 [2022-01-18 01:31:25,192 INFO L226 Difference]: Without dead ends: 98981 [2022-01-18 01:31:25,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=587, Invalid=3829, Unknown=6, NotChecked=0, Total=4422 [2022-01-18 01:31:25,194 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 1813 mSDsluCounter, 5348 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 5218 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 715 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:31:25,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1813 Valid, 5218 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1309 Invalid, 0 Unknown, 715 Unchecked, 0.6s Time] [2022-01-18 01:31:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98981 states. [2022-01-18 01:31:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98981 to 60664. [2022-01-18 01:31:27,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60664 states, 60663 states have (on average 4.567248569968514) internal successors, (277063), 60663 states have internal predecessors, (277063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60664 states to 60664 states and 277063 transitions. [2022-01-18 01:31:27,780 INFO L78 Accepts]: Start accepts. Automaton has 60664 states and 277063 transitions. Word has length 173 [2022-01-18 01:31:27,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:31:27,780 INFO L470 AbstractCegarLoop]: Abstraction has 60664 states and 277063 transitions. [2022-01-18 01:31:27,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.886363636363637) internal successors, (391), 44 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:27,780 INFO L276 IsEmpty]: Start isEmpty. Operand 60664 states and 277063 transitions. [2022-01-18 01:31:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:31:27,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:31:27,998 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:31:28,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 01:31:28,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:31:28,207 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:31:28,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:31:28,207 INFO L85 PathProgramCache]: Analyzing trace with hash -305134849, now seen corresponding path program 1 times [2022-01-18 01:31:28,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:31:28,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940709240] [2022-01-18 01:31:28,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:28,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:31:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:31:29,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:31:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940709240] [2022-01-18 01:31:29,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940709240] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:31:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180187082] [2022-01-18 01:31:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:31:29,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:31:29,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:31:29,077 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:31:29,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 01:31:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:31:29,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 71 conjunts are in the unsatisfiable core [2022-01-18 01:31:29,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:31:29,225 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:31:29,442 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 01:31:29,442 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 01:31:30,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:31:30,332 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-01-18 01:31:30,459 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 20 treesize of output 22 [2022-01-18 01:31:30,625 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:31:30,625 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 25 treesize of output 12 [2022-01-18 01:31:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 01:31:30,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:31:31,245 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 258 treesize of output 168 [2022-01-18 01:31:31,247 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 168 treesize of output 140 [2022-01-18 01:31:31,251 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 77 treesize of output 63 [2022-01-18 01:31:32,489 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 01:31:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:31:32,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180187082] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:31:32,537 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:31:32,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 22, 20] total 60 [2022-01-18 01:31:32,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403968638] [2022-01-18 01:31:32,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:31:32,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-01-18 01:31:32,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:31:32,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-01-18 01:31:32,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=3298, Unknown=6, NotChecked=0, Total=3540 [2022-01-18 01:31:32,539 INFO L87 Difference]: Start difference. First operand 60664 states and 277063 transitions. Second operand has 60 states, 60 states have (on average 7.533333333333333) internal successors, (452), 60 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:31:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:31:53,513 INFO L93 Difference]: Finished difference Result 502307 states and 2277071 transitions. [2022-01-18 01:31:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-01-18 01:31:53,514 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 7.533333333333333) internal successors, (452), 60 states have internal predecessors, (452), 0 states have call successors, (0), 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 173 [2022-01-18 01:31:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:31:57,608 INFO L225 Difference]: With dead ends: 502307 [2022-01-18 01:31:57,608 INFO L226 Difference]: Without dead ends: 468785 [2022-01-18 01:31:57,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 333 SyntacticMatches, 21 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 6716 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=4123, Invalid=20993, Unknown=6, NotChecked=0, Total=25122 [2022-01-18 01:31:57,618 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 10688 mSDsluCounter, 14959 mSDsCounter, 0 mSdLazyCounter, 4947 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10688 SdHoareTripleChecker+Valid, 13865 SdHoareTripleChecker+Invalid, 7790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 4947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2093 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:31:57,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10688 Valid, 13865 Invalid, 7790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [750 Valid, 4947 Invalid, 0 Unknown, 2093 Unchecked, 2.6s Time] [2022-01-18 01:31:58,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468785 states. [2022-01-18 01:32:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468785 to 104461. [2022-01-18 01:32:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104461 states, 104460 states have (on average 4.572544514646755) internal successors, (477648), 104460 states have internal predecessors, (477648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:32:06,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104461 states to 104461 states and 477648 transitions. [2022-01-18 01:32:06,718 INFO L78 Accepts]: Start accepts. Automaton has 104461 states and 477648 transitions. Word has length 173 [2022-01-18 01:32:06,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:32:06,718 INFO L470 AbstractCegarLoop]: Abstraction has 104461 states and 477648 transitions. [2022-01-18 01:32:06,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 7.533333333333333) internal successors, (452), 60 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:32:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 104461 states and 477648 transitions. [2022-01-18 01:32:07,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:32:07,016 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:32:07,016 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:32:07,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 01:32:07,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:32:07,233 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:32:07,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:32:07,234 INFO L85 PathProgramCache]: Analyzing trace with hash 653013381, now seen corresponding path program 2 times [2022-01-18 01:32:07,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:32:07,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297404837] [2022-01-18 01:32:07,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:32:07,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:32:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:32:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:32:08,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:32:08,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297404837] [2022-01-18 01:32:08,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297404837] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:32:08,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436755050] [2022-01-18 01:32:08,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:32:08,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:32:08,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:32:08,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:32:08,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 01:32:08,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:32:08,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:32:08,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 82 conjunts are in the unsatisfiable core [2022-01-18 01:32:08,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:32:08,775 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:32:09,041 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 01:32:09,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 01:32:10,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:32:10,338 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:32:10,516 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:32:10,678 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:32:10,678 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 19 treesize of output 19 [2022-01-18 01:32:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:32:11,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:32:11,688 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 116 treesize of output 76 [2022-01-18 01:32:11,691 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 76 treesize of output 64 [2022-01-18 01:32:11,695 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 34 treesize of output 28 [2022-01-18 01:32:13,470 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 01:32:13,527 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:32:13,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436755050] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:32:13,527 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:32:13,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29, 29] total 81 [2022-01-18 01:32:13,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813205675] [2022-01-18 01:32:13,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:32:13,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-01-18 01:32:13,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:32:13,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-01-18 01:32:13,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=492, Invalid=5985, Unknown=3, NotChecked=0, Total=6480 [2022-01-18 01:32:13,530 INFO L87 Difference]: Start difference. First operand 104461 states and 477648 transitions. Second operand has 81 states, 81 states have (on average 5.716049382716049) internal successors, (463), 81 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:32:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:32:28,082 INFO L93 Difference]: Finished difference Result 289616 states and 1318952 transitions. [2022-01-18 01:32:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-18 01:32:28,082 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 5.716049382716049) internal successors, (463), 81 states have internal predecessors, (463), 0 states have call successors, (0), 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 173 [2022-01-18 01:32:28,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:32:30,168 INFO L225 Difference]: With dead ends: 289616 [2022-01-18 01:32:30,168 INFO L226 Difference]: Without dead ends: 273420 [2022-01-18 01:32:30,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 306 SyntacticMatches, 6 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4607 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=3807, Invalid=18236, Unknown=9, NotChecked=0, Total=22052 [2022-01-18 01:32:30,172 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 10042 mSDsluCounter, 8976 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10042 SdHoareTripleChecker+Valid, 8221 SdHoareTripleChecker+Invalid, 4810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 3312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 810 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:32:30,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10042 Valid, 8221 Invalid, 4810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 3312 Invalid, 0 Unknown, 810 Unchecked, 1.7s Time] [2022-01-18 01:32:30,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273420 states. [2022-01-18 01:32:35,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273420 to 106100. [2022-01-18 01:32:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106100 states, 106099 states have (on average 4.569336186014948) internal successors, (484802), 106099 states have internal predecessors, (484802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:32:36,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106100 states to 106100 states and 484802 transitions. [2022-01-18 01:32:36,501 INFO L78 Accepts]: Start accepts. Automaton has 106100 states and 484802 transitions. Word has length 173 [2022-01-18 01:32:36,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:32:36,503 INFO L470 AbstractCegarLoop]: Abstraction has 106100 states and 484802 transitions. [2022-01-18 01:32:36,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 5.716049382716049) internal successors, (463), 81 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:32:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 106100 states and 484802 transitions. [2022-01-18 01:32:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:32:36,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:32:36,828 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:32:36,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 01:32:37,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:32:37,044 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:32:37,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:32:37,044 INFO L85 PathProgramCache]: Analyzing trace with hash 74676469, now seen corresponding path program 3 times [2022-01-18 01:32:37,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:32:37,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029563363] [2022-01-18 01:32:37,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:32:37,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:32:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:32:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:32:37,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:32:37,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029563363] [2022-01-18 01:32:37,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029563363] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:32:37,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919433137] [2022-01-18 01:32:37,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 01:32:37,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:32:37,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:32:37,351 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:32:37,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 01:32:37,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-18 01:32:37,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:32:37,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 63 conjunts are in the unsatisfiable core [2022-01-18 01:32:37,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:32:38,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:32:38,303 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:32:38,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:32:38,419 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:32:38,518 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:32:38,518 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 23 treesize of output 10 [2022-01-18 01:32:38,712 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 01:32:38,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:32:39,137 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 102 treesize of output 75 [2022-01-18 01:32:39,140 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 42 treesize of output 35 [2022-01-18 01:32:39,142 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 68 treesize of output 54 [2022-01-18 01:32:39,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:32:39,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:32:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:32:40,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919433137] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:32:40,195 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:32:40,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 20] total 48 [2022-01-18 01:32:40,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127709844] [2022-01-18 01:32:40,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:32:40,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-01-18 01:32:40,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:32:40,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-01-18 01:32:40,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=2032, Unknown=3, NotChecked=0, Total=2256 [2022-01-18 01:32:40,196 INFO L87 Difference]: Start difference. First operand 106100 states and 484802 transitions. Second operand has 48 states, 48 states have (on average 7.666666666666667) internal successors, (368), 48 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:32:44,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:32:44,795 INFO L93 Difference]: Finished difference Result 196256 states and 904184 transitions. [2022-01-18 01:32:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 01:32:44,795 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 7.666666666666667) internal successors, (368), 48 states have internal predecessors, (368), 0 states have call successors, (0), 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 173 [2022-01-18 01:32:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:32:45,875 INFO L225 Difference]: With dead ends: 196256 [2022-01-18 01:32:45,876 INFO L226 Difference]: Without dead ends: 192410 [2022-01-18 01:32:45,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 325 SyntacticMatches, 10 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1849 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1144, Invalid=5825, Unknown=3, NotChecked=0, Total=6972 [2022-01-18 01:32:45,877 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 3410 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3410 SdHoareTripleChecker+Valid, 5178 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 229 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:32:45,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3410 Valid, 5178 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1759 Invalid, 0 Unknown, 229 Unchecked, 1.2s Time] [2022-01-18 01:32:46,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192410 states. [2022-01-18 01:32:50,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192410 to 111123. [2022-01-18 01:32:50,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111123 states, 111122 states have (on average 4.591278054750634) internal successors, (510192), 111122 states have internal predecessors, (510192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:32:50,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111123 states to 111123 states and 510192 transitions. [2022-01-18 01:32:50,700 INFO L78 Accepts]: Start accepts. Automaton has 111123 states and 510192 transitions. Word has length 173 [2022-01-18 01:32:50,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:32:50,701 INFO L470 AbstractCegarLoop]: Abstraction has 111123 states and 510192 transitions. [2022-01-18 01:32:50,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 7.666666666666667) internal successors, (368), 48 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:32:50,701 INFO L276 IsEmpty]: Start isEmpty. Operand 111123 states and 510192 transitions. [2022-01-18 01:32:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:32:51,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:32:51,633 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:32:51,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 01:32:51,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:32:51,849 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:32:51,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:32:51,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1595293987, now seen corresponding path program 2 times [2022-01-18 01:32:51,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:32:51,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946066935] [2022-01-18 01:32:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:32:51,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:32:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:32:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:32:52,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:32:52,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946066935] [2022-01-18 01:32:52,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946066935] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:32:52,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386727242] [2022-01-18 01:32:52,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:32:52,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:32:52,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:32:52,149 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:32:52,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 01:32:52,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:32:52,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:32:52,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 84 conjunts are in the unsatisfiable core [2022-01-18 01:32:52,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:32:52,286 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:32:52,307 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 01:32:52,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-01-18 01:32:52,665 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 01:32:52,666 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 15 treesize of output 15 [2022-01-18 01:32:53,783 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:32:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:32:53,946 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:32:54,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:32:54,179 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:32:54,179 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 19 treesize of output 10 [2022-01-18 01:32:54,445 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:32:54,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:32:54,885 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 116 treesize of output 76 [2022-01-18 01:32:54,887 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 76 treesize of output 64 [2022-01-18 01:32:54,894 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 34 treesize of output 28 [2022-01-18 01:32:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:32:56,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386727242] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:32:56,608 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:32:56,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 29, 29] total 69 [2022-01-18 01:32:56,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377283046] [2022-01-18 01:32:56,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:32:56,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-01-18 01:32:56,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:32:56,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-01-18 01:32:56,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=4287, Unknown=3, NotChecked=0, Total=4692 [2022-01-18 01:32:56,609 INFO L87 Difference]: Start difference. First operand 111123 states and 510192 transitions. Second operand has 69 states, 69 states have (on average 6.579710144927536) internal successors, (454), 69 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:06,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:06,568 INFO L93 Difference]: Finished difference Result 293678 states and 1337601 transitions. [2022-01-18 01:33:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-18 01:33:06,568 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 6.579710144927536) internal successors, (454), 69 states have internal predecessors, (454), 0 states have call successors, (0), 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 173 [2022-01-18 01:33:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:08,954 INFO L225 Difference]: With dead ends: 293678 [2022-01-18 01:33:08,954 INFO L226 Difference]: Without dead ends: 275154 [2022-01-18 01:33:08,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 312 SyntacticMatches, 6 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5168 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=3444, Invalid=16293, Unknown=3, NotChecked=0, Total=19740 [2022-01-18 01:33:08,956 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 6718 mSDsluCounter, 7184 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6718 SdHoareTripleChecker+Valid, 6832 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 645 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:08,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6718 Valid, 6832 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2351 Invalid, 0 Unknown, 645 Unchecked, 1.2s Time] [2022-01-18 01:33:09,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275154 states. [2022-01-18 01:33:14,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275154 to 113703. [2022-01-18 01:33:14,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113703 states, 113702 states have (on average 4.598670208087809) internal successors, (522878), 113702 states have internal predecessors, (522878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:15,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113703 states to 113703 states and 522878 transitions. [2022-01-18 01:33:15,293 INFO L78 Accepts]: Start accepts. Automaton has 113703 states and 522878 transitions. Word has length 173 [2022-01-18 01:33:15,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:33:15,294 INFO L470 AbstractCegarLoop]: Abstraction has 113703 states and 522878 transitions. [2022-01-18 01:33:15,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 6.579710144927536) internal successors, (454), 69 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:15,294 INFO L276 IsEmpty]: Start isEmpty. Operand 113703 states and 522878 transitions. [2022-01-18 01:33:16,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:33:16,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:33:16,157 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:33:16,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 01:33:16,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:33:16,358 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:33:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:33:16,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2020751377, now seen corresponding path program 3 times [2022-01-18 01:33:16,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:33:16,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960048992] [2022-01-18 01:33:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:33:16,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:33:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:33:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:33:16,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:33:16,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960048992] [2022-01-18 01:33:16,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960048992] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:33:16,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223997092] [2022-01-18 01:33:16,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 01:33:16,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:33:16,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:33:16,691 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:33:16,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 01:33:16,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 01:33:16,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:33:16,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 60 conjunts are in the unsatisfiable core [2022-01-18 01:33:16,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:33:16,844 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:33:16,865 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 01:33:16,865 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-01-18 01:33:17,114 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 01:33:17,114 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 15 treesize of output 15 [2022-01-18 01:33:17,709 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:33:17,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:33:17,814 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:33:17,971 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:33:17,971 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 23 treesize of output 10 [2022-01-18 01:33:18,167 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:33:18,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:33:18,479 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 124 treesize of output 79 [2022-01-18 01:33:18,480 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 79 treesize of output 65 [2022-01-18 01:33:18,486 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 35 treesize of output 28 [2022-01-18 01:33:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:33:19,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223997092] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:33:19,226 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:33:19,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20, 20] total 46 [2022-01-18 01:33:19,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269560057] [2022-01-18 01:33:19,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:33:19,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-01-18 01:33:19,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:33:19,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-01-18 01:33:19,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1851, Unknown=3, NotChecked=0, Total=2070 [2022-01-18 01:33:19,228 INFO L87 Difference]: Start difference. First operand 113703 states and 522878 transitions. Second operand has 46 states, 46 states have (on average 9.195652173913043) internal successors, (423), 46 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:26,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:26,298 INFO L93 Difference]: Finished difference Result 264845 states and 1211869 transitions. [2022-01-18 01:33:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 01:33:26,299 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.195652173913043) internal successors, (423), 46 states have internal predecessors, (423), 0 states have call successors, (0), 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 173 [2022-01-18 01:33:26,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:27,797 INFO L225 Difference]: With dead ends: 264845 [2022-01-18 01:33:27,797 INFO L226 Difference]: Without dead ends: 259720 [2022-01-18 01:33:27,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 325 SyntacticMatches, 19 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2826 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1524, Invalid=7593, Unknown=3, NotChecked=0, Total=9120 [2022-01-18 01:33:27,798 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 2885 mSDsluCounter, 7389 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 7150 SdHoareTripleChecker+Invalid, 2813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 468 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:27,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2885 Valid, 7150 Invalid, 2813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2151 Invalid, 0 Unknown, 468 Unchecked, 1.1s Time] [2022-01-18 01:33:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259720 states. [2022-01-18 01:33:33,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259720 to 122611. [2022-01-18 01:33:33,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122611 states, 122610 states have (on average 4.619908653454042) internal successors, (566447), 122610 states have internal predecessors, (566447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:33,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122611 states to 122611 states and 566447 transitions. [2022-01-18 01:33:33,909 INFO L78 Accepts]: Start accepts. Automaton has 122611 states and 566447 transitions. Word has length 173 [2022-01-18 01:33:33,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:33:33,909 INFO L470 AbstractCegarLoop]: Abstraction has 122611 states and 566447 transitions. [2022-01-18 01:33:33,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.195652173913043) internal successors, (423), 46 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 122611 states and 566447 transitions. [2022-01-18 01:33:34,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:33:34,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:33:34,767 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:33:34,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 01:33:34,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:33:34,980 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:33:34,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:33:34,980 INFO L85 PathProgramCache]: Analyzing trace with hash -503307355, now seen corresponding path program 4 times [2022-01-18 01:33:34,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:33:34,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833038688] [2022-01-18 01:33:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:33:34,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:33:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:33:35,120 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:33:35,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:33:35,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833038688] [2022-01-18 01:33:35,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833038688] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:33:35,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472450354] [2022-01-18 01:33:35,120 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 01:33:35,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:33:35,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:33:35,121 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:33:35,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 01:33:35,237 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 01:33:35,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:33:35,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 54 conjunts are in the unsatisfiable core [2022-01-18 01:33:35,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:33:35,669 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:33:35,669 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 23 treesize of output 23 [2022-01-18 01:33:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:33:35,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:33:36,130 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 23 treesize of output 7 [2022-01-18 01:33:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:33:36,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472450354] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:33:36,392 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:33:36,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 11] total 30 [2022-01-18 01:33:36,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265799846] [2022-01-18 01:33:36,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:33:36,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 01:33:36,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:33:36,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 01:33:36,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2022-01-18 01:33:36,394 INFO L87 Difference]: Start difference. First operand 122611 states and 566447 transitions. Second operand has 30 states, 30 states have (on average 11.166666666666666) internal successors, (335), 30 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:38,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:38,373 INFO L93 Difference]: Finished difference Result 147627 states and 681200 transitions. [2022-01-18 01:33:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 01:33:38,373 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 11.166666666666666) internal successors, (335), 30 states have internal predecessors, (335), 0 states have call successors, (0), 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 173 [2022-01-18 01:33:38,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:39,080 INFO L225 Difference]: With dead ends: 147627 [2022-01-18 01:33:39,080 INFO L226 Difference]: Without dead ends: 145233 [2022-01-18 01:33:39,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=379, Invalid=1877, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 01:33:39,081 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 1202 mSDsluCounter, 3614 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 353 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:39,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1202 Valid, 3648 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 870 Invalid, 0 Unknown, 353 Unchecked, 0.3s Time] [2022-01-18 01:33:39,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145233 states. [2022-01-18 01:33:42,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145233 to 123617. [2022-01-18 01:33:43,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123617 states, 123616 states have (on average 4.623034235050479) internal successors, (571481), 123616 states have internal predecessors, (571481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123617 states to 123617 states and 571481 transitions. [2022-01-18 01:33:43,589 INFO L78 Accepts]: Start accepts. Automaton has 123617 states and 571481 transitions. Word has length 173 [2022-01-18 01:33:43,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:33:43,589 INFO L470 AbstractCegarLoop]: Abstraction has 123617 states and 571481 transitions. [2022-01-18 01:33:43,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 11.166666666666666) internal successors, (335), 30 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:43,589 INFO L276 IsEmpty]: Start isEmpty. Operand 123617 states and 571481 transitions. [2022-01-18 01:33:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:33:44,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:33:44,623 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:33:44,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 01:33:44,823 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,SelfDestructingSolverStorable10 [2022-01-18 01:33:44,826 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:33:44,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:33:44,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1081644267, now seen corresponding path program 5 times [2022-01-18 01:33:44,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:33:44,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202048495] [2022-01-18 01:33:44,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:33:44,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:33:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:33:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:33:45,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:33:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202048495] [2022-01-18 01:33:45,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202048495] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:33:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719460077] [2022-01-18 01:33:45,286 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 01:33:45,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:33:45,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:33:45,287 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:33:45,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 01:33:45,409 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 01:33:45,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:33:45,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 64 conjunts are in the unsatisfiable core [2022-01-18 01:33:45,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:33:46,141 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:33:46,141 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 23 treesize of output 10 [2022-01-18 01:33:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:33:46,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:33:46,658 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-01-18 01:33:46,659 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 24 treesize of output 12 [2022-01-18 01:33:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:33:47,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719460077] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:33:47,065 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:33:47,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 19, 11] total 44 [2022-01-18 01:33:47,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692016324] [2022-01-18 01:33:47,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:33:47,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-01-18 01:33:47,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:33:47,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-01-18 01:33:47,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1704, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 01:33:47,067 INFO L87 Difference]: Start difference. First operand 123617 states and 571481 transitions. Second operand has 44 states, 44 states have (on average 8.318181818181818) internal successors, (366), 44 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:33:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:33:52,090 INFO L93 Difference]: Finished difference Result 251090 states and 1151558 transitions. [2022-01-18 01:33:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 01:33:52,090 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.318181818181818) internal successors, (366), 44 states have internal predecessors, (366), 0 states have call successors, (0), 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 173 [2022-01-18 01:33:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:33:53,931 INFO L225 Difference]: With dead ends: 251090 [2022-01-18 01:33:53,932 INFO L226 Difference]: Without dead ends: 237388 [2022-01-18 01:33:53,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 332 SyntacticMatches, 6 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1004, Invalid=6136, Unknown=0, NotChecked=0, Total=7140 [2022-01-18 01:33:53,932 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 3082 mSDsluCounter, 7462 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 7195 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 398 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:33:53,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3082 Valid, 7195 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 1866 Invalid, 0 Unknown, 398 Unchecked, 0.8s Time] [2022-01-18 01:33:54,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237388 states. [2022-01-18 01:33:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237388 to 126323. [2022-01-18 01:33:59,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126323 states, 126322 states have (on average 4.623074365510362) internal successors, (583996), 126322 states have internal predecessors, (583996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:34:00,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126323 states to 126323 states and 583996 transitions. [2022-01-18 01:34:00,209 INFO L78 Accepts]: Start accepts. Automaton has 126323 states and 583996 transitions. Word has length 173 [2022-01-18 01:34:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:34:00,209 INFO L470 AbstractCegarLoop]: Abstraction has 126323 states and 583996 transitions. [2022-01-18 01:34:00,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.318181818181818) internal successors, (366), 44 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:34:00,209 INFO L276 IsEmpty]: Start isEmpty. Operand 126323 states and 583996 transitions. [2022-01-18 01:34:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:34:00,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:34:00,598 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:34:00,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 01:34:00,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:34:00,801 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:34:00,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:34:00,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1329245659, now seen corresponding path program 6 times [2022-01-18 01:34:00,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:34:00,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985657661] [2022-01-18 01:34:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:34:00,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:34:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:34:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:34:01,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:34:01,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985657661] [2022-01-18 01:34:01,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985657661] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:34:01,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011916296] [2022-01-18 01:34:01,668 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 01:34:01,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:34:01,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:34:01,670 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:34:01,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 01:34:01,779 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 01:34:01,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:34:01,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 01:34:01,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:34:01,813 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:34:01,841 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 01:34:01,841 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-01-18 01:34:01,878 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 01:34:01,878 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-01-18 01:34:01,924 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 01:34:01,924 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 25 [2022-01-18 01:34:02,529 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-01-18 01:34:02,530 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 33 [2022-01-18 01:34:02,789 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-18 01:34:03,676 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:34:03,837 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:34:03,979 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:34:04,066 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:34:04,261 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:34:04,261 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 27 treesize of output 14 [2022-01-18 01:34:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:34:04,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:34:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-18 01:34:04,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011916296] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:34:04,928 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:34:04,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27, 10] total 61 [2022-01-18 01:34:04,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166132590] [2022-01-18 01:34:04,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:34:04,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-01-18 01:34:04,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:34:04,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-01-18 01:34:04,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=3398, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 01:34:04,929 INFO L87 Difference]: Start difference. First operand 126323 states and 583996 transitions. Second operand has 61 states, 61 states have (on average 7.508196721311475) internal successors, (458), 61 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:34:21,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:34:21,664 INFO L93 Difference]: Finished difference Result 427570 states and 1975504 transitions. [2022-01-18 01:34:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-01-18 01:34:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 7.508196721311475) internal successors, (458), 61 states have internal predecessors, (458), 0 states have call successors, (0), 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 173 [2022-01-18 01:34:21,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:34:25,758 INFO L225 Difference]: With dead ends: 427570 [2022-01-18 01:34:25,758 INFO L226 Difference]: Without dead ends: 407083 [2022-01-18 01:34:25,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 319 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4144 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=3152, Invalid=16870, Unknown=0, NotChecked=0, Total=20022 [2022-01-18 01:34:25,760 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 8209 mSDsluCounter, 9269 mSDsCounter, 0 mSdLazyCounter, 3682 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8209 SdHoareTripleChecker+Valid, 8933 SdHoareTripleChecker+Invalid, 4429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 3682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:34:25,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8209 Valid, 8933 Invalid, 4429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 3682 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 01:34:26,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407083 states. [2022-01-18 01:34:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407083 to 147565. [2022-01-18 01:34:35,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147565 states, 147564 states have (on average 4.651161529912445) internal successors, (686344), 147564 states have internal predecessors, (686344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:34:35,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147565 states to 147565 states and 686344 transitions. [2022-01-18 01:34:35,961 INFO L78 Accepts]: Start accepts. Automaton has 147565 states and 686344 transitions. Word has length 173 [2022-01-18 01:34:35,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:34:35,961 INFO L470 AbstractCegarLoop]: Abstraction has 147565 states and 686344 transitions. [2022-01-18 01:34:35,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 7.508196721311475) internal successors, (458), 61 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:34:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 147565 states and 686344 transitions. [2022-01-18 01:34:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:34:37,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:34:37,099 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:34:37,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 01:34:37,316 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,SelfDestructingSolverStorable12 [2022-01-18 01:34:37,316 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:34:37,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:34:37,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1255552509, now seen corresponding path program 7 times [2022-01-18 01:34:37,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:34:37,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684770785] [2022-01-18 01:34:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:34:37,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:34:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:34:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:34:37,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:34:37,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684770785] [2022-01-18 01:34:37,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684770785] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:34:37,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974403204] [2022-01-18 01:34:37,675 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 01:34:37,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:34:37,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:34:37,676 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:34:37,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 01:34:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:34:37,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 61 conjunts are in the unsatisfiable core [2022-01-18 01:34:37,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:34:38,690 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:34:38,690 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 23 treesize of output 23 [2022-01-18 01:34:39,074 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:34:39,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:34:39,304 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 25 treesize of output 7 [2022-01-18 01:34:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:34:39,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974403204] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:34:39,673 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:34:39,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 20, 11] total 47 [2022-01-18 01:34:39,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139160315] [2022-01-18 01:34:39,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:34:39,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-01-18 01:34:39,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:34:39,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-01-18 01:34:39,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1967, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 01:34:39,674 INFO L87 Difference]: Start difference. First operand 147565 states and 686344 transitions. Second operand has 47 states, 47 states have (on average 8.127659574468085) internal successors, (382), 47 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:34:44,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:34:44,646 INFO L93 Difference]: Finished difference Result 252810 states and 1169309 transitions. [2022-01-18 01:34:44,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 01:34:44,646 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 8.127659574468085) internal successors, (382), 47 states have internal predecessors, (382), 0 states have call successors, (0), 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 173 [2022-01-18 01:34:44,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:34:46,656 INFO L225 Difference]: With dead ends: 252810 [2022-01-18 01:34:46,657 INFO L226 Difference]: Without dead ends: 252018 [2022-01-18 01:34:46,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 333 SyntacticMatches, 4 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1597 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1015, Invalid=6641, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 01:34:46,657 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 3919 mSDsluCounter, 7283 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3919 SdHoareTripleChecker+Valid, 6985 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 359 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:34:46,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3919 Valid, 6985 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1765 Invalid, 0 Unknown, 359 Unchecked, 0.7s Time] [2022-01-18 01:34:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252018 states. [2022-01-18 01:34:51,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252018 to 147913. [2022-01-18 01:34:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147913 states, 147912 states have (on average 4.648338201092542) internal successors, (687545), 147912 states have internal predecessors, (687545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:34:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147913 states to 147913 states and 687545 transitions. [2022-01-18 01:34:53,513 INFO L78 Accepts]: Start accepts. Automaton has 147913 states and 687545 transitions. Word has length 173 [2022-01-18 01:34:53,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:34:53,513 INFO L470 AbstractCegarLoop]: Abstraction has 147913 states and 687545 transitions. [2022-01-18 01:34:53,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 8.127659574468085) internal successors, (382), 47 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:34:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 147913 states and 687545 transitions. [2022-01-18 01:34:53,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:34:53,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:34:53,980 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:34:53,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 01:34:54,181 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,SelfDestructingSolverStorable13 [2022-01-18 01:34:54,181 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:34:54,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:34:54,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1382795755, now seen corresponding path program 4 times [2022-01-18 01:34:54,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:34:54,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636848790] [2022-01-18 01:34:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:34:54,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:34:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:34:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:34:54,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:34:54,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636848790] [2022-01-18 01:34:54,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636848790] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:34:54,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455446407] [2022-01-18 01:34:54,590 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 01:34:54,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:34:54,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:34:54,591 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:34:54,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 01:34:54,698 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 01:34:54,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:34:54,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 54 conjunts are in the unsatisfiable core [2022-01-18 01:34:54,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:34:55,950 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:34:55,950 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 27 treesize of output 27 [2022-01-18 01:34:56,144 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:34:56,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:34:56,337 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 25 treesize of output 7 [2022-01-18 01:34:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:34:56,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455446407] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:34:56,640 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:34:56,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 19, 11] total 44 [2022-01-18 01:34:56,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507800940] [2022-01-18 01:34:56,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:34:56,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-01-18 01:34:56,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:34:56,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-01-18 01:34:56,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1718, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 01:34:56,641 INFO L87 Difference]: Start difference. First operand 147913 states and 687545 transitions. Second operand has 44 states, 44 states have (on average 8.318181818181818) internal successors, (366), 44 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:35:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:35:09,345 INFO L93 Difference]: Finished difference Result 637019 states and 2927194 transitions. [2022-01-18 01:35:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-01-18 01:35:09,345 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.318181818181818) internal successors, (366), 44 states have internal predecessors, (366), 0 states have call successors, (0), 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 173 [2022-01-18 01:35:09,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:35:14,586 INFO L225 Difference]: With dead ends: 637019 [2022-01-18 01:35:14,586 INFO L226 Difference]: Without dead ends: 616641 [2022-01-18 01:35:14,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 343 SyntacticMatches, 7 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3104 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2262, Invalid=11078, Unknown=0, NotChecked=0, Total=13340 [2022-01-18 01:35:14,589 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 5429 mSDsluCounter, 12349 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5429 SdHoareTripleChecker+Valid, 11484 SdHoareTripleChecker+Invalid, 5185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1148 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:35:14,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5429 Valid, 11484 Invalid, 5185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 3576 Invalid, 0 Unknown, 1148 Unchecked, 1.6s Time] [2022-01-18 01:35:15,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616641 states. [2022-01-18 01:35:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616641 to 178153. [2022-01-18 01:35:27,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178153 states, 178152 states have (on average 4.649714850240244) internal successors, (828356), 178152 states have internal predecessors, (828356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:35:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178153 states to 178153 states and 828356 transitions. [2022-01-18 01:35:29,068 INFO L78 Accepts]: Start accepts. Automaton has 178153 states and 828356 transitions. Word has length 173 [2022-01-18 01:35:29,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:35:29,069 INFO L470 AbstractCegarLoop]: Abstraction has 178153 states and 828356 transitions. [2022-01-18 01:35:29,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.318181818181818) internal successors, (366), 44 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:35:29,069 INFO L276 IsEmpty]: Start isEmpty. Operand 178153 states and 828356 transitions. [2022-01-18 01:35:29,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:35:29,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:35:29,671 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:35:29,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 01:35:29,878 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,SelfDestructingSolverStorable14 [2022-01-18 01:35:29,878 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:35:29,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:35:29,878 INFO L85 PathProgramCache]: Analyzing trace with hash -990250775, now seen corresponding path program 5 times [2022-01-18 01:35:29,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:35:29,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909142756] [2022-01-18 01:35:29,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:35:29,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:35:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:35:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:35:30,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:35:30,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909142756] [2022-01-18 01:35:30,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909142756] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:35:30,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407989005] [2022-01-18 01:35:30,280 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 01:35:30,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:35:30,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:35:30,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:35:30,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 01:35:30,407 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 01:35:30,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:35:30,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 38 conjunts are in the unsatisfiable core [2022-01-18 01:35:30,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:35:30,710 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:35:30,711 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 23 treesize of output 23 [2022-01-18 01:35:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:35:30,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:35:31,018 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 23 treesize of output 7 [2022-01-18 01:35:31,281 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:35:31,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407989005] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:35:31,281 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:35:31,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 11, 11] total 37 [2022-01-18 01:35:31,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519368584] [2022-01-18 01:35:31,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:35:31,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-01-18 01:35:31,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:35:31,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-01-18 01:35:31,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1195, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 01:35:31,283 INFO L87 Difference]: Start difference. First operand 178153 states and 828356 transitions. Second operand has 37 states, 37 states have (on average 9.216216216216216) internal successors, (341), 37 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:35:38,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:35:38,811 INFO L93 Difference]: Finished difference Result 351630 states and 1627432 transitions. [2022-01-18 01:35:38,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-18 01:35:38,811 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 9.216216216216216) internal successors, (341), 37 states have internal predecessors, (341), 0 states have call successors, (0), 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 173 [2022-01-18 01:35:38,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:35:42,679 INFO L225 Difference]: With dead ends: 351630 [2022-01-18 01:35:42,680 INFO L226 Difference]: Without dead ends: 344202 [2022-01-18 01:35:42,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 338 SyntacticMatches, 12 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2266 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1473, Invalid=7457, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 01:35:42,680 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 3616 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3616 SdHoareTripleChecker+Valid, 6136 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 293 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:35:42,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3616 Valid, 6136 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1954 Invalid, 0 Unknown, 293 Unchecked, 1.2s Time] [2022-01-18 01:35:43,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344202 states. [2022-01-18 01:35:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344202 to 180354. [2022-01-18 01:35:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180354 states, 180353 states have (on average 4.648711138711305) internal successors, (838409), 180353 states have internal predecessors, (838409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:35:52,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180354 states to 180354 states and 838409 transitions. [2022-01-18 01:35:52,627 INFO L78 Accepts]: Start accepts. Automaton has 180354 states and 838409 transitions. Word has length 173 [2022-01-18 01:35:52,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:35:52,627 INFO L470 AbstractCegarLoop]: Abstraction has 180354 states and 838409 transitions. [2022-01-18 01:35:52,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 9.216216216216216) internal successors, (341), 37 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:35:52,627 INFO L276 IsEmpty]: Start isEmpty. Operand 180354 states and 838409 transitions. [2022-01-18 01:35:53,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:35:53,195 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:35:53,195 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:35:53,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-18 01:35:53,395 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,SelfDestructingSolverStorable15 [2022-01-18 01:35:53,395 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:35:53,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:35:53,396 INFO L85 PathProgramCache]: Analyzing trace with hash -564793385, now seen corresponding path program 6 times [2022-01-18 01:35:53,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:35:53,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582878203] [2022-01-18 01:35:53,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:35:53,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:35:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:35:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:35:53,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:35:53,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582878203] [2022-01-18 01:35:53,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582878203] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:35:53,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170064567] [2022-01-18 01:35:53,648 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 01:35:53,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:35:53,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:35:53,649 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:35:53,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 01:35:53,770 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 01:35:53,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:35:53,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 01:35:53,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:35:53,801 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:35:53,822 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 01:35:53,823 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-01-18 01:35:53,850 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 01:35:53,851 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-01-18 01:35:53,907 INFO L353 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-01-18 01:35:53,907 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 42 [2022-01-18 01:35:54,605 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-01-18 01:35:54,606 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 37 [2022-01-18 01:35:54,814 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-18 01:35:55,602 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:35:55,737 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:35:55,853 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:35:55,940 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:35:56,076 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:35:56,076 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 23 treesize of output 10 [2022-01-18 01:35:56,264 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:35:56,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:35:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-18 01:35:56,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170064567] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:35:56,963 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:35:56,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 27, 10] total 43 [2022-01-18 01:35:56,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695392222] [2022-01-18 01:35:56,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:35:56,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-18 01:35:56,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:35:56,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-18 01:35:56,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1643, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 01:35:56,980 INFO L87 Difference]: Start difference. First operand 180354 states and 838409 transitions. Second operand has 43 states, 43 states have (on average 8.790697674418604) internal successors, (378), 43 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:36:05,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:36:05,401 INFO L93 Difference]: Finished difference Result 295716 states and 1365141 transitions. [2022-01-18 01:36:05,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 01:36:05,401 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 8.790697674418604) internal successors, (378), 43 states have internal predecessors, (378), 0 states have call successors, (0), 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 173 [2022-01-18 01:36:05,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:36:07,176 INFO L225 Difference]: With dead ends: 295716 [2022-01-18 01:36:07,176 INFO L226 Difference]: Without dead ends: 288500 [2022-01-18 01:36:07,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 317 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1337 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1262, Invalid=6394, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 01:36:07,177 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 4049 mSDsluCounter, 6499 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:36:07,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4049 Valid, 6286 Invalid, 2931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 01:36:08,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288500 states. [2022-01-18 01:36:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288500 to 193259. [2022-01-18 01:36:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193259 states, 193258 states have (on average 4.662466754287015) internal successors, (901059), 193258 states have internal predecessors, (901059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:36:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193259 states to 193259 states and 901059 transitions. [2022-01-18 01:36:16,364 INFO L78 Accepts]: Start accepts. Automaton has 193259 states and 901059 transitions. Word has length 173 [2022-01-18 01:36:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:36:16,364 INFO L470 AbstractCegarLoop]: Abstraction has 193259 states and 901059 transitions. [2022-01-18 01:36:16,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 8.790697674418604) internal successors, (378), 43 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:36:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand 193259 states and 901059 transitions. [2022-01-18 01:36:17,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:36:17,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:36:17,036 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:36:17,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 01:36:17,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:36:17,237 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:36:17,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:36:17,238 INFO L85 PathProgramCache]: Analyzing trace with hash 668190489, now seen corresponding path program 7 times [2022-01-18 01:36:17,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:36:17,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033981358] [2022-01-18 01:36:17,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:36:17,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:36:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:36:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:36:17,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:36:17,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033981358] [2022-01-18 01:36:17,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033981358] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:36:17,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237246027] [2022-01-18 01:36:17,740 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 01:36:17,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:36:17,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:36:17,741 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:36:17,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 01:36:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:36:17,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 69 conjunts are in the unsatisfiable core [2022-01-18 01:36:17,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:36:17,886 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:36:17,985 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 01:36:17,985 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 01:36:18,839 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 22 treesize of output 24 [2022-01-18 01:36:18,881 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:36:18,882 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 27 treesize of output 27 [2022-01-18 01:36:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:36:19,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:36:19,864 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 54 treesize of output 30 [2022-01-18 01:36:19,867 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 17 treesize of output 11 [2022-01-18 01:36:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:36:20,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237246027] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:36:20,845 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:36:20,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 67 [2022-01-18 01:36:20,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512380433] [2022-01-18 01:36:20,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:36:20,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-01-18 01:36:20,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:36:20,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-01-18 01:36:20,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=4035, Unknown=3, NotChecked=0, Total=4422 [2022-01-18 01:36:20,847 INFO L87 Difference]: Start difference. First operand 193259 states and 901059 transitions. Second operand has 67 states, 67 states have (on average 6.08955223880597) internal successors, (408), 67 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:36:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:36:27,433 INFO L93 Difference]: Finished difference Result 342267 states and 1572073 transitions. [2022-01-18 01:36:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 01:36:27,434 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.08955223880597) internal successors, (408), 67 states have internal predecessors, (408), 0 states have call successors, (0), 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 173 [2022-01-18 01:36:27,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:36:29,349 INFO L225 Difference]: With dead ends: 342267 [2022-01-18 01:36:29,349 INFO L226 Difference]: Without dead ends: 322758 [2022-01-18 01:36:29,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 315 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2460 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1702, Invalid=10285, Unknown=3, NotChecked=0, Total=11990 [2022-01-18 01:36:29,350 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 3975 mSDsluCounter, 10406 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3975 SdHoareTripleChecker+Valid, 9930 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 770 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:36:29,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3975 Valid, 9930 Invalid, 2839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1944 Invalid, 0 Unknown, 770 Unchecked, 0.7s Time] [2022-01-18 01:36:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322758 states. [2022-01-18 01:36:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322758 to 199355. [2022-01-18 01:36:37,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199355 states, 199354 states have (on average 4.647160327858985) internal successors, (926430), 199354 states have internal predecessors, (926430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:36:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199355 states to 199355 states and 926430 transitions. [2022-01-18 01:36:39,183 INFO L78 Accepts]: Start accepts. Automaton has 199355 states and 926430 transitions. Word has length 173 [2022-01-18 01:36:39,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:36:39,183 INFO L470 AbstractCegarLoop]: Abstraction has 199355 states and 926430 transitions. [2022-01-18 01:36:39,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.08955223880597) internal successors, (408), 67 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:36:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 199355 states and 926430 transitions. [2022-01-18 01:36:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-18 01:36:39,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:36:39,877 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:36:39,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 01:36:40,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-18 01:36:40,084 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:36:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:36:40,084 INFO L85 PathProgramCache]: Analyzing trace with hash -745647883, now seen corresponding path program 8 times [2022-01-18 01:36:40,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:36:40,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838430436] [2022-01-18 01:36:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:36:40,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:36:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:36:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:36:41,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:36:41,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838430436] [2022-01-18 01:36:41,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838430436] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:36:41,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117980398] [2022-01-18 01:36:41,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:36:41,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:36:41,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:36:41,129 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:36:41,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 01:36:41,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:36:41,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:36:41,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 81 conjunts are in the unsatisfiable core [2022-01-18 01:36:41,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:36:42,094 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 01:36:42,786 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:36:42,981 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:36:43,166 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:36:43,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:36:43,373 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:36:43,486 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-18 01:36:43,487 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 27 treesize of output 14 [2022-01-18 01:36:43,820 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:36:43,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:36:45,367 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:36:45,367 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 70 treesize of output 59 [2022-01-18 01:36:45,379 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 7046 treesize of output 6694 [2022-01-18 01:36:45,562 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 5214 treesize of output 4734 [2022-01-18 01:36:45,578 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 4734 treesize of output 4470 [2022-01-18 01:36:45,593 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 4470 treesize of output 3702 [2022-01-18 01:36:45,608 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 3702 treesize of output 2934