./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d9a9e332bba43f0e6d965514fc764881b170e0a0500d860d4fcce12986d98914 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:16:45,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:16:45,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:16:45,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:16:45,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:16:45,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:16:45,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:16:45,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:16:45,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:16:45,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:16:45,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:16:45,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:16:45,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:16:45,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:16:45,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:16:45,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:16:45,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:16:45,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:16:45,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:16:45,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:16:45,153 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:16:45,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:16:45,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:16:45,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:16:45,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:16:45,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:16:45,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:16:45,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:16:45,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:16:45,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:16:45,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:16:45,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:16:45,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:16:45,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:16:45,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:16:45,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:16:45,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:16:45,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:16:45,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:16:45,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:16:45,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:16:45,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:16:45,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:16:45,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:16:45,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:16:45,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:16:45,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:16:45,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:16:45,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:16:45,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:16:45,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:16:45,185 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:16:45,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:16:45,185 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:16:45,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:16:45,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:16:45,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:16:45,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:16:45,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:16:45,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:16:45,186 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:16:45,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:16:45,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:16:45,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:16:45,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:16:45,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:16:45,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:16:45,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:16:45,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:16:45,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:16:45,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:16:45,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:16:45,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:16:45,188 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:16:45,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:16:45,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:16:45,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9a9e332bba43f0e6d965514fc764881b170e0a0500d860d4fcce12986d98914 [2022-07-13 17:16:45,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:16:45,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:16:45,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:16:45,385 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:16:45,385 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:16:45,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2022-07-13 17:16:45,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e8031a1/2b0bbe4d5e1143df9bfd7b88a4978c8f/FLAG32aae202d [2022-07-13 17:16:45,870 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:16:45,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2022-07-13 17:16:45,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e8031a1/2b0bbe4d5e1143df9bfd7b88a4978c8f/FLAG32aae202d [2022-07-13 17:16:45,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53e8031a1/2b0bbe4d5e1143df9bfd7b88a4978c8f [2022-07-13 17:16:45,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:16:45,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:16:45,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:16:45,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:16:45,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:16:45,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:16:45" (1/1) ... [2022-07-13 17:16:45,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25eb348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:45, skipping insertion in model container [2022-07-13 17:16:45,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:16:45" (1/1) ... [2022-07-13 17:16:45,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:16:45,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:16:46,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c[71679,71692] [2022-07-13 17:16:46,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:16:46,298 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:16:46,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c[71679,71692] [2022-07-13 17:16:46,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:16:46,375 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:16:46,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46 WrapperNode [2022-07-13 17:16:46,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:16:46,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:16:46,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:16:46,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:16:46,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,441 INFO L137 Inliner]: procedures = 95, calls = 346, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 863 [2022-07-13 17:16:46,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:16:46,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:16:46,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:16:46,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:16:46,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:16:46,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:16:46,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:16:46,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:16:46,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (1/1) ... [2022-07-13 17:16:46,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:16:46,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:16:46,577 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) [2022-07-13 17:16:46,601 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 [2022-07-13 17:16:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:16:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-13 17:16:46,615 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-13 17:16:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-13 17:16:46,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-13 17:16:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-13 17:16:46,616 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-13 17:16:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-13 17:16:46,616 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-13 17:16:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-13 17:16:46,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-13 17:16:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-13 17:16:46,616 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-13 17:16:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-07-13 17:16:46,616 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-07-13 17:16:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-13 17:16:46,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-13 17:16:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 17:16:46,617 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 17:16:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 17:16:46,617 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 17:16:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-13 17:16:46,617 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-13 17:16:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-13 17:16:46,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-13 17:16:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-13 17:16:46,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-13 17:16:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-13 17:16:46,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-13 17:16:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-13 17:16:46,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-13 17:16:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-13 17:16:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-13 17:16:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-13 17:16:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-13 17:16:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-13 17:16:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-13 17:16:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-13 17:16:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-13 17:16:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-13 17:16:46,620 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-13 17:16:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:16:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-13 17:16:46,620 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-13 17:16:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-13 17:16:46,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-13 17:16:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-13 17:16:46,621 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-13 17:16:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-13 17:16:46,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-13 17:16:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2022-07-13 17:16:46,621 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2022-07-13 17:16:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:16:46,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:16:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-13 17:16:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-13 17:16:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2022-07-13 17:16:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2022-07-13 17:16:46,735 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:16:46,737 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:16:47,522 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:16:47,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:16:47,534 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 17:16:47,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:16:47 BoogieIcfgContainer [2022-07-13 17:16:47,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:16:47,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:16:47,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:16:47,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:16:47,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:16:45" (1/3) ... [2022-07-13 17:16:47,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362d21f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:16:47, skipping insertion in model container [2022-07-13 17:16:47,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:16:46" (2/3) ... [2022-07-13 17:16:47,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362d21f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:16:47, skipping insertion in model container [2022-07-13 17:16:47,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:16:47" (3/3) ... [2022-07-13 17:16:47,545 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product24.cil.c [2022-07-13 17:16:47,558 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:16:47,558 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:16:47,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:16:47,642 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@53eea596, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4adcfc47 [2022-07-13 17:16:47,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:16:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 572 states, 440 states have (on average 1.6590909090909092) internal successors, (730), 458 states have internal predecessors, (730), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-13 17:16:47,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-13 17:16:47,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:16:47,679 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:16:47,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:16:47,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:16:47,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1178526646, now seen corresponding path program 1 times [2022-07-13 17:16:47,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:16:47,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131764610] [2022-07-13 17:16:47,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:16:47,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:16:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:47,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:16:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:48,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:48,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:16:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:48,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 17:16:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:48,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:16:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:48,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:48,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:16:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:48,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:16:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:16:48,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:16:48,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131764610] [2022-07-13 17:16:48,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131764610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:16:48,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:16:48,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:16:48,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107764531] [2022-07-13 17:16:48,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:16:48,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:16:48,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:16:48,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:16:48,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:16:48,116 INFO L87 Difference]: Start difference. First operand has 572 states, 440 states have (on average 1.6590909090909092) internal successors, (730), 458 states have internal predecessors, (730), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:50,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:16:50,391 INFO L93 Difference]: Finished difference Result 1260 states and 2089 transitions. [2022-07-13 17:16:50,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:16:50,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2022-07-13 17:16:50,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:16:50,420 INFO L225 Difference]: With dead ends: 1260 [2022-07-13 17:16:50,420 INFO L226 Difference]: Without dead ends: 688 [2022-07-13 17:16:50,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:16:50,431 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 657 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:16:50,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 2003 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-13 17:16:50,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-13 17:16:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-13 17:16:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6490825688073394) internal successors, (719), 453 states have internal predecessors, (719), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:16:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 924 transitions. [2022-07-13 17:16:50,551 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 924 transitions. Word has length 63 [2022-07-13 17:16:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:16:50,551 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 924 transitions. [2022-07-13 17:16:50,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:50,552 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 924 transitions. [2022-07-13 17:16:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-13 17:16:50,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:16:50,560 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:16:50,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:16:50,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:16:50,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:16:50,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1866360424, now seen corresponding path program 1 times [2022-07-13 17:16:50,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:16:50,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075807299] [2022-07-13 17:16:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:16:50,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:16:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:16:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:16:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 17:16:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:16:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:16:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:16:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:50,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:16:50,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:16:50,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075807299] [2022-07-13 17:16:50,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075807299] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:16:50,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:16:50,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:16:50,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387848359] [2022-07-13 17:16:50,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:16:50,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:16:50,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:16:50,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:16:50,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:16:50,733 INFO L87 Difference]: Start difference. First operand 567 states and 924 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:16:52,806 INFO L93 Difference]: Finished difference Result 1238 states and 2033 transitions. [2022-07-13 17:16:52,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:16:52,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2022-07-13 17:16:52,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:16:52,811 INFO L225 Difference]: With dead ends: 1238 [2022-07-13 17:16:52,811 INFO L226 Difference]: Without dead ends: 688 [2022-07-13 17:16:52,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:16:52,814 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 649 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:16:52,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1961 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-13 17:16:52,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-13 17:16:52,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-13 17:16:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.646788990825688) internal successors, (718), 453 states have internal predecessors, (718), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:16:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 923 transitions. [2022-07-13 17:16:52,867 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 923 transitions. Word has length 64 [2022-07-13 17:16:52,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:16:52,868 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 923 transitions. [2022-07-13 17:16:52,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:52,868 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 923 transitions. [2022-07-13 17:16:52,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-13 17:16:52,870 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:16:52,870 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:16:52,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:16:52,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:16:52,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:16:52,871 INFO L85 PathProgramCache]: Analyzing trace with hash 496083826, now seen corresponding path program 1 times [2022-07-13 17:16:52,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:16:52,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331825684] [2022-07-13 17:16:52,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:16:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:16:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:16:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 17:16:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-13 17:16:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:16:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 17:16:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:16:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:52,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:16:52,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:16:52,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331825684] [2022-07-13 17:16:52,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331825684] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:16:52,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:16:52,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:16:52,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822723747] [2022-07-13 17:16:52,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:16:52,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:16:52,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:16:52,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:16:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:16:52,998 INFO L87 Difference]: Start difference. First operand 567 states and 923 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:55,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:16:55,074 INFO L93 Difference]: Finished difference Result 1238 states and 2032 transitions. [2022-07-13 17:16:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:16:55,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2022-07-13 17:16:55,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:16:55,085 INFO L225 Difference]: With dead ends: 1238 [2022-07-13 17:16:55,085 INFO L226 Difference]: Without dead ends: 688 [2022-07-13 17:16:55,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:16:55,094 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 646 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 17:16:55,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 1961 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 17:16:55,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-13 17:16:55,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-13 17:16:55,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6444954128440368) internal successors, (717), 453 states have internal predecessors, (717), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:16:55,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 922 transitions. [2022-07-13 17:16:55,121 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 922 transitions. Word has length 65 [2022-07-13 17:16:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:16:55,122 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 922 transitions. [2022-07-13 17:16:55,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:55,122 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 922 transitions. [2022-07-13 17:16:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-13 17:16:55,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:16:55,123 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:16:55,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:16:55,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:16:55,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:16:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash -251104988, now seen corresponding path program 1 times [2022-07-13 17:16:55,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:16:55,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813749896] [2022-07-13 17:16:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:16:55,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:16:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:16:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-13 17:16:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:16:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:16:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:16:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:16:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:16:55,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:16:55,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813749896] [2022-07-13 17:16:55,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813749896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:16:55,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:16:55,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:16:55,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528500809] [2022-07-13 17:16:55,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:16:55,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:16:55,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:16:55,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:16:55,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:16:55,249 INFO L87 Difference]: Start difference. First operand 567 states and 922 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:57,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:16:57,199 INFO L93 Difference]: Finished difference Result 1238 states and 2031 transitions. [2022-07-13 17:16:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:16:57,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2022-07-13 17:16:57,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:16:57,203 INFO L225 Difference]: With dead ends: 1238 [2022-07-13 17:16:57,203 INFO L226 Difference]: Without dead ends: 688 [2022-07-13 17:16:57,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:16:57,206 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 643 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:16:57,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1961 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:16:57,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-13 17:16:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-13 17:16:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6422018348623852) internal successors, (716), 453 states have internal predecessors, (716), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:16:57,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 921 transitions. [2022-07-13 17:16:57,230 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 921 transitions. Word has length 66 [2022-07-13 17:16:57,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:16:57,230 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 921 transitions. [2022-07-13 17:16:57,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:57,231 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 921 transitions. [2022-07-13 17:16:57,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-13 17:16:57,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:16:57,232 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:16:57,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:16:57,232 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:16:57,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:16:57,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1137558318, now seen corresponding path program 1 times [2022-07-13 17:16:57,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:16:57,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637823045] [2022-07-13 17:16:57,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:16:57,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:16:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:16:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 17:16:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:16:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:16:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:16:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:16:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:16:57,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:16:57,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637823045] [2022-07-13 17:16:57,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637823045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:16:57,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:16:57,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:16:57,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687356412] [2022-07-13 17:16:57,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:16:57,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:16:57,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:16:57,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:16:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:16:57,344 INFO L87 Difference]: Start difference. First operand 567 states and 921 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:59,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:16:59,148 INFO L93 Difference]: Finished difference Result 1238 states and 2030 transitions. [2022-07-13 17:16:59,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:16:59,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-07-13 17:16:59,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:16:59,152 INFO L225 Difference]: With dead ends: 1238 [2022-07-13 17:16:59,152 INFO L226 Difference]: Without dead ends: 688 [2022-07-13 17:16:59,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:16:59,155 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 640 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:16:59,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1961 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 17:16:59,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-13 17:16:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 567. [2022-07-13 17:16:59,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.639908256880734) internal successors, (715), 453 states have internal predecessors, (715), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:16:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 920 transitions. [2022-07-13 17:16:59,181 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 920 transitions. Word has length 67 [2022-07-13 17:16:59,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:16:59,181 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 920 transitions. [2022-07-13 17:16:59,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:16:59,182 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 920 transitions. [2022-07-13 17:16:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 17:16:59,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:16:59,182 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:16:59,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:16:59,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:16:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:16:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash 18160608, now seen corresponding path program 1 times [2022-07-13 17:16:59,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:16:59,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392769388] [2022-07-13 17:16:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:16:59,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:16:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:16:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:16:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 17:16:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 17:16:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:16:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:16:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:16:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:16:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:16:59,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:16:59,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392769388] [2022-07-13 17:16:59,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392769388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:16:59,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:16:59,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:16:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072581298] [2022-07-13 17:16:59,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:16:59,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:16:59,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:16:59,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:16:59,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:16:59,286 INFO L87 Difference]: Start difference. First operand 567 states and 920 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:01,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:01,206 INFO L93 Difference]: Finished difference Result 1263 states and 2074 transitions. [2022-07-13 17:17:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:17:01,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2022-07-13 17:17:01,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:01,211 INFO L225 Difference]: With dead ends: 1263 [2022-07-13 17:17:01,211 INFO L226 Difference]: Without dead ends: 717 [2022-07-13 17:17:01,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:17:01,213 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 718 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:01,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1892 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:17:01,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-13 17:17:01,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 587. [2022-07-13 17:17:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 455 states have (on average 1.6351648351648351) internal successors, (744), 472 states have internal predecessors, (744), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:01,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 949 transitions. [2022-07-13 17:17:01,241 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 949 transitions. Word has length 68 [2022-07-13 17:17:01,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:01,242 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 949 transitions. [2022-07-13 17:17:01,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:01,242 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 949 transitions. [2022-07-13 17:17:01,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 17:17:01,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:01,243 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:01,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 17:17:01,243 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:01,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:01,244 INFO L85 PathProgramCache]: Analyzing trace with hash -319430663, now seen corresponding path program 1 times [2022-07-13 17:17:01,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:01,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568283234] [2022-07-13 17:17:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:01,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 17:17:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 17:17:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:17:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 17:17:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:01,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:01,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568283234] [2022-07-13 17:17:01,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568283234] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:01,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:01,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:01,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465140484] [2022-07-13 17:17:01,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:01,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:01,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:01,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:01,376 INFO L87 Difference]: Start difference. First operand 587 states and 949 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:03,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:03,246 INFO L93 Difference]: Finished difference Result 1247 states and 2025 transitions. [2022-07-13 17:17:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:03,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2022-07-13 17:17:03,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:03,265 INFO L225 Difference]: With dead ends: 1247 [2022-07-13 17:17:03,266 INFO L226 Difference]: Without dead ends: 717 [2022-07-13 17:17:03,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:17:03,268 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 693 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:03,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1890 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:17:03,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-13 17:17:03,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 587. [2022-07-13 17:17:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 455 states have (on average 1.6241758241758242) internal successors, (739), 472 states have internal predecessors, (739), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:03,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 944 transitions. [2022-07-13 17:17:03,292 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 944 transitions. Word has length 69 [2022-07-13 17:17:03,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:03,292 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 944 transitions. [2022-07-13 17:17:03,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:03,293 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 944 transitions. [2022-07-13 17:17:03,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-13 17:17:03,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:03,293 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:03,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 17:17:03,294 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:03,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:03,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2108593275, now seen corresponding path program 1 times [2022-07-13 17:17:03,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:03,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672059845] [2022-07-13 17:17:03,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:03,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:17:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 17:17:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:17:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 17:17:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:03,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:03,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672059845] [2022-07-13 17:17:03,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672059845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:03,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:03,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:03,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92695764] [2022-07-13 17:17:03,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:03,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:03,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:03,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:03,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:03,427 INFO L87 Difference]: Start difference. First operand 587 states and 944 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:05,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:05,290 INFO L93 Difference]: Finished difference Result 1247 states and 2020 transitions. [2022-07-13 17:17:05,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:05,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2022-07-13 17:17:05,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:05,295 INFO L225 Difference]: With dead ends: 1247 [2022-07-13 17:17:05,295 INFO L226 Difference]: Without dead ends: 717 [2022-07-13 17:17:05,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:17:05,298 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 692 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:05,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1890 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:17:05,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-13 17:17:05,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 587. [2022-07-13 17:17:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 455 states have (on average 1.6131868131868132) internal successors, (734), 472 states have internal predecessors, (734), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 939 transitions. [2022-07-13 17:17:05,324 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 939 transitions. Word has length 70 [2022-07-13 17:17:05,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:05,325 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 939 transitions. [2022-07-13 17:17:05,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:05,325 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 939 transitions. [2022-07-13 17:17:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-13 17:17:05,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:05,326 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:05,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 17:17:05,326 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:05,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:05,326 INFO L85 PathProgramCache]: Analyzing trace with hash -336255905, now seen corresponding path program 1 times [2022-07-13 17:17:05,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:05,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712415415] [2022-07-13 17:17:05,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:05,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:17:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:17:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:17:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:17:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:05,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:05,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712415415] [2022-07-13 17:17:05,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712415415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:05,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:05,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:05,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360198314] [2022-07-13 17:17:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:05,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:05,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:05,490 INFO L87 Difference]: Start difference. First operand 587 states and 939 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:07,381 INFO L93 Difference]: Finished difference Result 1274 states and 2054 transitions. [2022-07-13 17:17:07,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:17:07,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-07-13 17:17:07,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:07,384 INFO L225 Difference]: With dead ends: 1274 [2022-07-13 17:17:07,384 INFO L226 Difference]: Without dead ends: 750 [2022-07-13 17:17:07,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:17:07,387 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 707 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:07,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1946 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 17:17:07,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-07-13 17:17:07,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 591. [2022-07-13 17:17:07,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 459 states have (on average 1.607843137254902) internal successors, (738), 476 states have internal predecessors, (738), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:07,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 943 transitions. [2022-07-13 17:17:07,410 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 943 transitions. Word has length 71 [2022-07-13 17:17:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:07,410 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 943 transitions. [2022-07-13 17:17:07,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 943 transitions. [2022-07-13 17:17:07,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-13 17:17:07,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:07,412 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:07,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 17:17:07,412 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:07,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1651827202, now seen corresponding path program 1 times [2022-07-13 17:17:07,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:07,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521649274] [2022-07-13 17:17:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:07,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:17:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:17:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:17:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:17:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:07,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:07,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521649274] [2022-07-13 17:17:07,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521649274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:07,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:07,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:07,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843889301] [2022-07-13 17:17:07,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:07,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:07,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:07,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:07,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:07,514 INFO L87 Difference]: Start difference. First operand 591 states and 943 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:09,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:09,332 INFO L93 Difference]: Finished difference Result 1257 states and 2024 transitions. [2022-07-13 17:17:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:09,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-07-13 17:17:09,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:09,336 INFO L225 Difference]: With dead ends: 1257 [2022-07-13 17:17:09,336 INFO L226 Difference]: Without dead ends: 723 [2022-07-13 17:17:09,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:17:09,338 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 691 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:09,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1890 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:17:09,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-07-13 17:17:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 591. [2022-07-13 17:17:09,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 459 states have (on average 1.5969498910675382) internal successors, (733), 476 states have internal predecessors, (733), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 938 transitions. [2022-07-13 17:17:09,361 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 938 transitions. Word has length 71 [2022-07-13 17:17:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:09,361 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 938 transitions. [2022-07-13 17:17:09,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 938 transitions. [2022-07-13 17:17:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-13 17:17:09,362 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:09,362 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:09,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 17:17:09,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:09,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:09,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2104422631, now seen corresponding path program 1 times [2022-07-13 17:17:09,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:09,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632484039] [2022-07-13 17:17:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:09,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:17:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 17:17:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:17:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:17:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:09,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:09,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632484039] [2022-07-13 17:17:09,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632484039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:09,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:09,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:09,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151806632] [2022-07-13 17:17:09,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:09,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:09,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:09,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:09,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:09,479 INFO L87 Difference]: Start difference. First operand 591 states and 938 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:11,338 INFO L93 Difference]: Finished difference Result 1282 states and 2053 transitions. [2022-07-13 17:17:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:17:11,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2022-07-13 17:17:11,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:11,342 INFO L225 Difference]: With dead ends: 1282 [2022-07-13 17:17:11,342 INFO L226 Difference]: Without dead ends: 756 [2022-07-13 17:17:11,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:17:11,344 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 710 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:11,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1926 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 17:17:11,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-07-13 17:17:11,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 597. [2022-07-13 17:17:11,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 465 states have (on average 1.589247311827957) internal successors, (739), 482 states have internal predecessors, (739), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 944 transitions. [2022-07-13 17:17:11,378 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 944 transitions. Word has length 72 [2022-07-13 17:17:11,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:11,378 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 944 transitions. [2022-07-13 17:17:11,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:11,379 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 944 transitions. [2022-07-13 17:17:11,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-13 17:17:11,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:11,380 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:11,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 17:17:11,380 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:11,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:11,380 INFO L85 PathProgramCache]: Analyzing trace with hash -290748630, now seen corresponding path program 1 times [2022-07-13 17:17:11,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:11,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217101667] [2022-07-13 17:17:11,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:11,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:17:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 17:17:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:17:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:17:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:11,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:11,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217101667] [2022-07-13 17:17:11,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217101667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:11,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:11,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:11,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687215524] [2022-07-13 17:17:11,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:11,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:11,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:11,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:11,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:11,505 INFO L87 Difference]: Start difference. First operand 597 states and 944 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:13,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:13,308 INFO L93 Difference]: Finished difference Result 1272 states and 2033 transitions. [2022-07-13 17:17:13,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:13,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2022-07-13 17:17:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:13,312 INFO L225 Difference]: With dead ends: 1272 [2022-07-13 17:17:13,312 INFO L226 Difference]: Without dead ends: 732 [2022-07-13 17:17:13,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:17:13,314 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 690 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:13,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1890 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:17:13,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-07-13 17:17:13,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 597. [2022-07-13 17:17:13,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 465 states have (on average 1.578494623655914) internal successors, (734), 482 states have internal predecessors, (734), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 939 transitions. [2022-07-13 17:17:13,339 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 939 transitions. Word has length 72 [2022-07-13 17:17:13,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:13,339 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 939 transitions. [2022-07-13 17:17:13,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:13,339 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 939 transitions. [2022-07-13 17:17:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-13 17:17:13,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:13,340 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:13,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 17:17:13,341 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:13,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1787437276, now seen corresponding path program 1 times [2022-07-13 17:17:13,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:13,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105441900] [2022-07-13 17:17:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:17:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:17:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:17:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:17:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:13,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:13,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105441900] [2022-07-13 17:17:13,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105441900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:13,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:13,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:13,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066367657] [2022-07-13 17:17:13,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:13,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:13,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:13,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:13,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:13,468 INFO L87 Difference]: Start difference. First operand 597 states and 939 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:15,348 INFO L93 Difference]: Finished difference Result 1294 states and 2056 transitions. [2022-07-13 17:17:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:17:15,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-07-13 17:17:15,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:15,351 INFO L225 Difference]: With dead ends: 1294 [2022-07-13 17:17:15,351 INFO L226 Difference]: Without dead ends: 765 [2022-07-13 17:17:15,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:17:15,353 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 702 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:15,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1921 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 17:17:15,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-07-13 17:17:15,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 605. [2022-07-13 17:17:15,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 473 states have (on average 1.5687103594080338) internal successors, (742), 490 states have internal predecessors, (742), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 947 transitions. [2022-07-13 17:17:15,380 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 947 transitions. Word has length 73 [2022-07-13 17:17:15,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:15,380 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 947 transitions. [2022-07-13 17:17:15,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:15,380 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 947 transitions. [2022-07-13 17:17:15,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-13 17:17:15,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:15,382 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:15,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 17:17:15,382 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:15,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:15,383 INFO L85 PathProgramCache]: Analyzing trace with hash -960753661, now seen corresponding path program 1 times [2022-07-13 17:17:15,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:15,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415680535] [2022-07-13 17:17:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:15,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:17:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:17:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:17:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:17:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:15,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:15,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:15,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415680535] [2022-07-13 17:17:15,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415680535] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:15,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:15,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:17:15,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634774673] [2022-07-13 17:17:15,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:15,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:17:15,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:15,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:17:15,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:17:15,543 INFO L87 Difference]: Start difference. First operand 605 states and 947 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-13 17:17:18,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:18,054 INFO L93 Difference]: Finished difference Result 1303 states and 2063 transitions. [2022-07-13 17:17:18,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 17:17:18,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2022-07-13 17:17:18,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:18,058 INFO L225 Difference]: With dead ends: 1303 [2022-07-13 17:17:18,058 INFO L226 Difference]: Without dead ends: 773 [2022-07-13 17:17:18,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:17:18,060 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 717 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:18,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 3421 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 17:17:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-07-13 17:17:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 616. [2022-07-13 17:17:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 481 states have (on average 1.5634095634095635) internal successors, (752), 500 states have internal predecessors, (752), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2022-07-13 17:17:18,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 961 transitions. [2022-07-13 17:17:18,088 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 961 transitions. Word has length 73 [2022-07-13 17:17:18,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:18,088 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 961 transitions. [2022-07-13 17:17:18,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-13 17:17:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 961 transitions. [2022-07-13 17:17:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-13 17:17:18,089 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:18,090 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:18,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 17:17:18,090 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:18,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash -330295036, now seen corresponding path program 1 times [2022-07-13 17:17:18,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:18,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99399264] [2022-07-13 17:17:18,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:18,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:17:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:17:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:17:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:17:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:18,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:18,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99399264] [2022-07-13 17:17:18,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99399264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:18,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:18,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:18,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975959476] [2022-07-13 17:17:18,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:18,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:18,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:18,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:18,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:18,190 INFO L87 Difference]: Start difference. First operand 616 states and 961 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:20,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:20,073 INFO L93 Difference]: Finished difference Result 1353 states and 2127 transitions. [2022-07-13 17:17:20,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:20,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2022-07-13 17:17:20,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:20,076 INFO L225 Difference]: With dead ends: 1353 [2022-07-13 17:17:20,076 INFO L226 Difference]: Without dead ends: 734 [2022-07-13 17:17:20,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:17:20,078 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 640 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:20,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 2022 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 17:17:20,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-07-13 17:17:20,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 597. [2022-07-13 17:17:20,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 465 states have (on average 1.5677419354838709) internal successors, (729), 482 states have internal predecessors, (729), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:20,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 934 transitions. [2022-07-13 17:17:20,102 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 934 transitions. Word has length 73 [2022-07-13 17:17:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:20,102 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 934 transitions. [2022-07-13 17:17:20,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:20,103 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 934 transitions. [2022-07-13 17:17:20,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-13 17:17:20,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:20,103 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:20,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 17:17:20,104 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:20,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:20,104 INFO L85 PathProgramCache]: Analyzing trace with hash -124526004, now seen corresponding path program 1 times [2022-07-13 17:17:20,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:20,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082949786] [2022-07-13 17:17:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:20,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:17:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:17:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:17:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:20,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:20,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082949786] [2022-07-13 17:17:20,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082949786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:20,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:20,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443123953] [2022-07-13 17:17:20,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:20,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:20,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:20,199 INFO L87 Difference]: Start difference. First operand 597 states and 934 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:22,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:22,150 INFO L93 Difference]: Finished difference Result 1300 states and 2052 transitions. [2022-07-13 17:17:22,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:17:22,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2022-07-13 17:17:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:22,157 INFO L225 Difference]: With dead ends: 1300 [2022-07-13 17:17:22,157 INFO L226 Difference]: Without dead ends: 767 [2022-07-13 17:17:22,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:17:22,159 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 684 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:22,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1912 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:17:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-07-13 17:17:22,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 607. [2022-07-13 17:17:22,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 475 states have (on average 1.5557894736842106) internal successors, (739), 492 states have internal predecessors, (739), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 944 transitions. [2022-07-13 17:17:22,184 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 944 transitions. Word has length 74 [2022-07-13 17:17:22,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:22,185 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 944 transitions. [2022-07-13 17:17:22,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:22,185 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 944 transitions. [2022-07-13 17:17:22,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-13 17:17:22,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:22,186 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:22,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 17:17:22,186 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:22,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:22,187 INFO L85 PathProgramCache]: Analyzing trace with hash -142384329, now seen corresponding path program 1 times [2022-07-13 17:17:22,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:22,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582768395] [2022-07-13 17:17:22,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:22,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:17:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:17:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:17:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:22,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:22,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582768395] [2022-07-13 17:17:22,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582768395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:22,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:22,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:17:22,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359685781] [2022-07-13 17:17:22,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:22,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:22,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:22,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:22,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:22,286 INFO L87 Difference]: Start difference. First operand 607 states and 944 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:24,281 INFO L93 Difference]: Finished difference Result 1296 states and 2040 transitions. [2022-07-13 17:17:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:17:24,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2022-07-13 17:17:24,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:24,289 INFO L225 Difference]: With dead ends: 1296 [2022-07-13 17:17:24,289 INFO L226 Difference]: Without dead ends: 737 [2022-07-13 17:17:24,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:17:24,291 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 704 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:24,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1872 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 17:17:24,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-07-13 17:17:24,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 607. [2022-07-13 17:17:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 475 states have (on average 1.5473684210526315) internal successors, (735), 492 states have internal predecessors, (735), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-13 17:17:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 940 transitions. [2022-07-13 17:17:24,316 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 940 transitions. Word has length 75 [2022-07-13 17:17:24,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:24,317 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 940 transitions. [2022-07-13 17:17:24,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 17:17:24,317 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 940 transitions. [2022-07-13 17:17:24,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-13 17:17:24,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:24,318 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:17:24,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 17:17:24,318 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:24,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:24,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2070657031, now seen corresponding path program 1 times [2022-07-13 17:17:24,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:24,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772594349] [2022-07-13 17:17:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:24,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:17:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:17:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:17:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 17:17:24,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:24,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772594349] [2022-07-13 17:17:24,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772594349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:24,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:24,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 17:17:24,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798176757] [2022-07-13 17:17:24,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:24,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:17:24,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:24,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:17:24,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 17:17:24,432 INFO L87 Difference]: Start difference. First operand 607 states and 940 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-13 17:17:27,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:27,262 INFO L93 Difference]: Finished difference Result 1893 states and 3030 transitions. [2022-07-13 17:17:27,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:17:27,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2022-07-13 17:17:27,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:27,267 INFO L225 Difference]: With dead ends: 1893 [2022-07-13 17:17:27,267 INFO L226 Difference]: Without dead ends: 1362 [2022-07-13 17:17:27,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:17:27,270 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 1898 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:27,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2002 Valid, 1547 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-13 17:17:27,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-07-13 17:17:27,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1071. [2022-07-13 17:17:27,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 839 states have (on average 1.5756853396901074) internal successors, (1322), 865 states have internal predecessors, (1322), 182 states have call successors, (182), 51 states have call predecessors, (182), 49 states have return successors, (187), 169 states have call predecessors, (187), 180 states have call successors, (187) [2022-07-13 17:17:27,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1691 transitions. [2022-07-13 17:17:27,323 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1691 transitions. Word has length 75 [2022-07-13 17:17:27,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:27,324 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1691 transitions. [2022-07-13 17:17:27,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-13 17:17:27,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1691 transitions. [2022-07-13 17:17:27,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-13 17:17:27,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:27,326 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 17:17:27,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 17:17:27,327 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:27,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:27,327 INFO L85 PathProgramCache]: Analyzing trace with hash -144697500, now seen corresponding path program 1 times [2022-07-13 17:17:27,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:27,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438346971] [2022-07-13 17:17:27,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:27,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:17:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:17:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 17:17:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:17:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:17:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 17:17:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 17:17:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:17:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-13 17:17:27,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:27,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438346971] [2022-07-13 17:17:27,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438346971] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:17:27,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132684498] [2022-07-13 17:17:27,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:27,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:27,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:17:27,613 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) [2022-07-13 17:17:27,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 17:17:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:27,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 17:17:27,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:17:27,946 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-13 17:17:27,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:17:27,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132684498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:27,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:17:27,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2022-07-13 17:17:27,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189285157] [2022-07-13 17:17:27,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:27,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:17:27,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:27,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:17:27,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:17:27,948 INFO L87 Difference]: Start difference. First operand 1071 states and 1691 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-13 17:17:28,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:28,339 INFO L93 Difference]: Finished difference Result 2737 states and 4326 transitions. [2022-07-13 17:17:28,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:17:28,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2022-07-13 17:17:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:28,347 INFO L225 Difference]: With dead ends: 2737 [2022-07-13 17:17:28,347 INFO L226 Difference]: Without dead ends: 1742 [2022-07-13 17:17:28,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-13 17:17:28,352 INFO L413 NwaCegarLoop]: 1173 mSDtfsCounter, 868 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 4635 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:28,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 4635 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 17:17:28,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-07-13 17:17:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1736. [2022-07-13 17:17:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1351 states have (on average 1.541820873427091) internal successors, (2083), 1380 states have internal predecessors, (2083), 297 states have call successors, (297), 87 states have call predecessors, (297), 87 states have return successors, (327), 284 states have call predecessors, (327), 293 states have call successors, (327) [2022-07-13 17:17:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2707 transitions. [2022-07-13 17:17:28,461 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2707 transitions. Word has length 129 [2022-07-13 17:17:28,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:28,461 INFO L495 AbstractCegarLoop]: Abstraction has 1736 states and 2707 transitions. [2022-07-13 17:17:28,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-13 17:17:28,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2707 transitions. [2022-07-13 17:17:28,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-13 17:17:28,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:28,465 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:28,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 17:17:28,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:28,679 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:28,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:28,680 INFO L85 PathProgramCache]: Analyzing trace with hash -782717716, now seen corresponding path program 1 times [2022-07-13 17:17:28,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:28,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163162004] [2022-07-13 17:17:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:28,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:17:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 17:17:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:17:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:17:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:17:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-13 17:17:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 17:17:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-13 17:17:28,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:28,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163162004] [2022-07-13 17:17:28,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163162004] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:17:28,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864747164] [2022-07-13 17:17:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:28,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:28,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:17:28,996 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) [2022-07-13 17:17:28,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 17:17:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:29,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 17:17:29,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:17:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-13 17:17:29,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:17:29,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864747164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:29,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:17:29,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2022-07-13 17:17:29,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109867442] [2022-07-13 17:17:29,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:29,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:29,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:29,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-13 17:17:29,322 INFO L87 Difference]: Start difference. First operand 1736 states and 2707 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-13 17:17:29,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:29,808 INFO L93 Difference]: Finished difference Result 3428 states and 5518 transitions. [2022-07-13 17:17:29,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:29,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2022-07-13 17:17:29,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:29,816 INFO L225 Difference]: With dead ends: 3428 [2022-07-13 17:17:29,816 INFO L226 Difference]: Without dead ends: 1768 [2022-07-13 17:17:29,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-07-13 17:17:29,825 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 826 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:29,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2181 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 17:17:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-13 17:17:29,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1768. [2022-07-13 17:17:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1379 states have (on average 1.5453226976069616) internal successors, (2131), 1408 states have internal predecessors, (2131), 297 states have call successors, (297), 91 states have call predecessors, (297), 91 states have return successors, (331), 284 states have call predecessors, (331), 293 states have call successors, (331) [2022-07-13 17:17:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2759 transitions. [2022-07-13 17:17:29,926 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2759 transitions. Word has length 130 [2022-07-13 17:17:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:29,926 INFO L495 AbstractCegarLoop]: Abstraction has 1768 states and 2759 transitions. [2022-07-13 17:17:29,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-13 17:17:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2759 transitions. [2022-07-13 17:17:29,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-13 17:17:29,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:29,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:29,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 17:17:30,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-07-13 17:17:30,167 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:30,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:30,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1975297937, now seen corresponding path program 1 times [2022-07-13 17:17:30,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:30,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569311406] [2022-07-13 17:17:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:30,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:17:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:17:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:17:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:17:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 17:17:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 17:17:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-13 17:17:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 17:17:30,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:30,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569311406] [2022-07-13 17:17:30,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569311406] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:17:30,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727352349] [2022-07-13 17:17:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:30,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:30,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:17:30,476 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) [2022-07-13 17:17:30,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 17:17:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:30,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 17:17:30,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:17:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-13 17:17:30,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:17:30,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727352349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:30,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:17:30,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-07-13 17:17:30,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085824469] [2022-07-13 17:17:30,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:30,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:30,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:17:30,782 INFO L87 Difference]: Start difference. First operand 1768 states and 2759 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-13 17:17:31,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:31,282 INFO L93 Difference]: Finished difference Result 3492 states and 5610 transitions. [2022-07-13 17:17:31,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:31,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-07-13 17:17:31,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:31,291 INFO L225 Difference]: With dead ends: 3492 [2022-07-13 17:17:31,291 INFO L226 Difference]: Without dead ends: 1800 [2022-07-13 17:17:31,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:17:31,299 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 819 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:31,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2181 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 17:17:31,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2022-07-13 17:17:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2022-07-13 17:17:31,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1407 states have (on average 1.548685145700071) internal successors, (2179), 1436 states have internal predecessors, (2179), 297 states have call successors, (297), 95 states have call predecessors, (297), 95 states have return successors, (335), 284 states have call predecessors, (335), 293 states have call successors, (335) [2022-07-13 17:17:31,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2811 transitions. [2022-07-13 17:17:31,445 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2811 transitions. Word has length 133 [2022-07-13 17:17:31,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:31,446 INFO L495 AbstractCegarLoop]: Abstraction has 1800 states and 2811 transitions. [2022-07-13 17:17:31,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-13 17:17:31,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2811 transitions. [2022-07-13 17:17:31,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-13 17:17:31,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:31,452 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:31,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 17:17:31,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:31,690 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:31,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:31,690 INFO L85 PathProgramCache]: Analyzing trace with hash 295036936, now seen corresponding path program 1 times [2022-07-13 17:17:31,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:31,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257593226] [2022-07-13 17:17:31,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:31,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-13 17:17:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:17:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-13 17:17:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:17:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-13 17:17:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:17:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 17:17:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-13 17:17:31,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:31,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257593226] [2022-07-13 17:17:31,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257593226] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:17:31,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336354793] [2022-07-13 17:17:31,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:31,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:31,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:17:31,996 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) [2022-07-13 17:17:31,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 17:17:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:32,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 17:17:32,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:17:32,285 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-13 17:17:32,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:17:32,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336354793] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:32,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:17:32,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-07-13 17:17:32,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513098642] [2022-07-13 17:17:32,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:32,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:32,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:32,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:32,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:17:32,287 INFO L87 Difference]: Start difference. First operand 1800 states and 2811 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-13 17:17:32,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:32,711 INFO L93 Difference]: Finished difference Result 3556 states and 5702 transitions. [2022-07-13 17:17:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:32,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2022-07-13 17:17:32,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:32,719 INFO L225 Difference]: With dead ends: 3556 [2022-07-13 17:17:32,719 INFO L226 Difference]: Without dead ends: 1832 [2022-07-13 17:17:32,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:17:32,728 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 824 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:32,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2181 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 17:17:32,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2022-07-13 17:17:32,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1832. [2022-07-13 17:17:32,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1832 states, 1435 states have (on average 1.5519163763066202) internal successors, (2227), 1464 states have internal predecessors, (2227), 297 states have call successors, (297), 99 states have call predecessors, (297), 99 states have return successors, (339), 284 states have call predecessors, (339), 293 states have call successors, (339) [2022-07-13 17:17:32,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2863 transitions. [2022-07-13 17:17:32,814 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2863 transitions. Word has length 136 [2022-07-13 17:17:32,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:32,814 INFO L495 AbstractCegarLoop]: Abstraction has 1832 states and 2863 transitions. [2022-07-13 17:17:32,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-13 17:17:32,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2863 transitions. [2022-07-13 17:17:32,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-13 17:17:32,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:32,818 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:32,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 17:17:33,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:33,031 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:33,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash 475414083, now seen corresponding path program 1 times [2022-07-13 17:17:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:33,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087956845] [2022-07-13 17:17:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 17:17:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 17:17:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 17:17:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 17:17:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 17:17:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 17:17:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 17:17:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,310 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:17:33,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:33,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087956845] [2022-07-13 17:17:33,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087956845] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:17:33,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888458319] [2022-07-13 17:17:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:33,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:33,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:17:33,312 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) [2022-07-13 17:17:33,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 17:17:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:33,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 17:17:33,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:17:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-13 17:17:33,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:17:33,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888458319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:33,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:17:33,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-07-13 17:17:33,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226786257] [2022-07-13 17:17:33,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:33,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:17:33,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:33,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:17:33,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:17:33,604 INFO L87 Difference]: Start difference. First operand 1832 states and 2863 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-13 17:17:34,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:34,059 INFO L93 Difference]: Finished difference Result 3620 states and 5794 transitions. [2022-07-13 17:17:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:34,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2022-07-13 17:17:34,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:34,080 INFO L225 Difference]: With dead ends: 3620 [2022-07-13 17:17:34,080 INFO L226 Difference]: Without dead ends: 1864 [2022-07-13 17:17:34,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:17:34,086 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 832 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:34,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 2181 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 17:17:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-07-13 17:17:34,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1864. [2022-07-13 17:17:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1463 states have (on average 1.555023923444976) internal successors, (2275), 1492 states have internal predecessors, (2275), 297 states have call successors, (297), 103 states have call predecessors, (297), 103 states have return successors, (343), 284 states have call predecessors, (343), 293 states have call successors, (343) [2022-07-13 17:17:34,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 2915 transitions. [2022-07-13 17:17:34,175 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 2915 transitions. Word has length 139 [2022-07-13 17:17:34,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:34,176 INFO L495 AbstractCegarLoop]: Abstraction has 1864 states and 2915 transitions. [2022-07-13 17:17:34,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-13 17:17:34,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 2915 transitions. [2022-07-13 17:17:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-13 17:17:34,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:34,180 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:34,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 17:17:34,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-13 17:17:34,399 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:34,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash 342056228, now seen corresponding path program 1 times [2022-07-13 17:17:34,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:34,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731751227] [2022-07-13 17:17:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:34,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 17:17:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:17:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 17:17:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 17:17:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-13 17:17:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,755 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-13 17:17:34,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:34,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731751227] [2022-07-13 17:17:34,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731751227] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:17:34,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782821428] [2022-07-13 17:17:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:34,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:34,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:17:34,757 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) [2022-07-13 17:17:34,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 17:17:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:34,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 17:17:34,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:17:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:17:35,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:17:35,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782821428] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:35,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:17:35,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-13 17:17:35,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791494666] [2022-07-13 17:17:35,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:35,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:17:35,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:35,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:17:35,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-13 17:17:35,081 INFO L87 Difference]: Start difference. First operand 1864 states and 2915 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2022-07-13 17:17:36,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:36,259 INFO L93 Difference]: Finished difference Result 3691 states and 5801 transitions. [2022-07-13 17:17:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:17:36,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 142 [2022-07-13 17:17:36,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:36,268 INFO L225 Difference]: With dead ends: 3691 [2022-07-13 17:17:36,268 INFO L226 Difference]: Without dead ends: 1906 [2022-07-13 17:17:36,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-13 17:17:36,274 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 2116 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:36,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 1516 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 17:17:36,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-07-13 17:17:36,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1768. [2022-07-13 17:17:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1339 states have (on average 1.5242718446601942) internal successors, (2041), 1388 states have internal predecessors, (2041), 331 states have call successors, (331), 93 states have call predecessors, (331), 97 states have return successors, (377), 312 states have call predecessors, (377), 327 states have call successors, (377) [2022-07-13 17:17:36,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2749 transitions. [2022-07-13 17:17:36,368 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2749 transitions. Word has length 142 [2022-07-13 17:17:36,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:36,368 INFO L495 AbstractCegarLoop]: Abstraction has 1768 states and 2749 transitions. [2022-07-13 17:17:36,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2022-07-13 17:17:36,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2749 transitions. [2022-07-13 17:17:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-13 17:17:36,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:36,372 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:36,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 17:17:36,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:36,587 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash -611883930, now seen corresponding path program 1 times [2022-07-13 17:17:36,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:36,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595771858] [2022-07-13 17:17:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:36,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 17:17:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:17:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 17:17:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 17:17:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-13 17:17:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-13 17:17:36,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:36,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595771858] [2022-07-13 17:17:36,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595771858] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:17:36,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082369757] [2022-07-13 17:17:36,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:36,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:36,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:17:36,916 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) [2022-07-13 17:17:36,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 17:17:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:37,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-13 17:17:37,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:17:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 17:17:37,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:17:37,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082369757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:37,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:17:37,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2022-07-13 17:17:37,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011136924] [2022-07-13 17:17:37,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:37,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:17:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:37,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:17:37,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-13 17:17:37,232 INFO L87 Difference]: Start difference. First operand 1768 states and 2749 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-13 17:17:40,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:40,511 INFO L93 Difference]: Finished difference Result 7394 states and 11883 transitions. [2022-07-13 17:17:40,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 17:17:40,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2022-07-13 17:17:40,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:40,536 INFO L225 Difference]: With dead ends: 7394 [2022-07-13 17:17:40,537 INFO L226 Difference]: Without dead ends: 5704 [2022-07-13 17:17:40,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2022-07-13 17:17:40,545 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 2715 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 5569 mSolverCounterSat, 859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 3306 SdHoareTripleChecker+Invalid, 6428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 859 IncrementalHoareTripleChecker+Valid, 5569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:40,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2821 Valid, 3306 Invalid, 6428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [859 Valid, 5569 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-13 17:17:40,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2022-07-13 17:17:40,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5288. [2022-07-13 17:17:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 3961 states have (on average 1.5319363797020955) internal successors, (6068), 4115 states have internal predecessors, (6068), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 310 states have return successors, (1360), 988 states have call predecessors, (1360), 1008 states have call successors, (1360) [2022-07-13 17:17:40,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 8444 transitions. [2022-07-13 17:17:40,834 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 8444 transitions. Word has length 142 [2022-07-13 17:17:40,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:40,835 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 8444 transitions. [2022-07-13 17:17:40,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-13 17:17:40,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 8444 transitions. [2022-07-13 17:17:40,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-13 17:17:40,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:40,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 17:17:40,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 17:17:41,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:41,059 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:41,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:41,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1943849335, now seen corresponding path program 1 times [2022-07-13 17:17:41,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:41,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267109896] [2022-07-13 17:17:41,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:41,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 17:17:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:17:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:17:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-13 17:17:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-13 17:17:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-13 17:17:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-13 17:17:41,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:41,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267109896] [2022-07-13 17:17:41,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267109896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:41,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:41,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 17:17:41,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230654365] [2022-07-13 17:17:41,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:41,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 17:17:41,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:41,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 17:17:41,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:17:41,310 INFO L87 Difference]: Start difference. First operand 5288 states and 8444 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-13 17:17:55,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:55,806 INFO L93 Difference]: Finished difference Result 24972 states and 41683 transitions. [2022-07-13 17:17:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-13 17:17:55,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 147 [2022-07-13 17:17:55,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:55,942 INFO L225 Difference]: With dead ends: 24972 [2022-07-13 17:17:55,943 INFO L226 Difference]: Without dead ends: 19766 [2022-07-13 17:17:55,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2022-07-13 17:17:55,969 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 6202 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 6039 mSolverCounterSat, 3995 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6268 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 10034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3995 IncrementalHoareTripleChecker+Valid, 6039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:55,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6268 Valid, 2871 Invalid, 10034 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3995 Valid, 6039 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-07-13 17:17:55,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19766 states. [2022-07-13 17:17:56,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19766 to 5352. [2022-07-13 17:17:56,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 4007 states have (on average 1.5285749937609183) internal successors, (6125), 4159 states have internal predecessors, (6125), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-13 17:17:56,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 8520 transitions. [2022-07-13 17:17:56,720 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 8520 transitions. Word has length 147 [2022-07-13 17:17:56,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:56,721 INFO L495 AbstractCegarLoop]: Abstraction has 5352 states and 8520 transitions. [2022-07-13 17:17:56,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-13 17:17:56,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 8520 transitions. [2022-07-13 17:17:56,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-13 17:17:56,724 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:56,724 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 17:17:56,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-13 17:17:56,725 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:56,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:56,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1691586439, now seen corresponding path program 1 times [2022-07-13 17:17:56,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:56,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106742463] [2022-07-13 17:17:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:56,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:56,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:56,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:56,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 17:17:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:17:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:17:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-13 17:17:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-13 17:17:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-13 17:17:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-13 17:17:57,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:57,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106742463] [2022-07-13 17:17:57,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106742463] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:17:57,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607346798] [2022-07-13 17:17:57,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:57,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:17:57,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:17:57,038 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) [2022-07-13 17:17:57,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 17:17:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:57,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 17:17:57,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:17:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 17:17:57,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:17:57,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607346798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:57,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:17:57,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-13 17:17:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958554265] [2022-07-13 17:17:57,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:57,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:17:57,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:17:57,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-07-13 17:17:57,370 INFO L87 Difference]: Start difference. First operand 5352 states and 8520 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-13 17:17:58,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:17:58,063 INFO L93 Difference]: Finished difference Result 5480 states and 8801 transitions. [2022-07-13 17:17:58,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:17:58,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-07-13 17:17:58,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:17:58,095 INFO L225 Difference]: With dead ends: 5480 [2022-07-13 17:17:58,095 INFO L226 Difference]: Without dead ends: 5478 [2022-07-13 17:17:58,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-07-13 17:17:58,100 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 399 mSDsluCounter, 3039 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:17:58,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 4065 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 17:17:58,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2022-07-13 17:17:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5352. [2022-07-13 17:17:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 4007 states have (on average 1.521836785625156) internal successors, (6098), 4159 states have internal predecessors, (6098), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-13 17:17:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 8493 transitions. [2022-07-13 17:17:58,637 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 8493 transitions. Word has length 147 [2022-07-13 17:17:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:17:58,638 INFO L495 AbstractCegarLoop]: Abstraction has 5352 states and 8493 transitions. [2022-07-13 17:17:58,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-13 17:17:58,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 8493 transitions. [2022-07-13 17:17:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-13 17:17:58,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:17:58,642 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:17:58,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-13 17:17:58,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-13 17:17:58,860 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:17:58,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:17:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash 911918580, now seen corresponding path program 1 times [2022-07-13 17:17:58,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:17:58,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051236576] [2022-07-13 17:17:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:17:58,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:17:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:58,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:17:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:58,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:17:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:17:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:17:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 17:17:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:17:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:17:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:17:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:17:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:17:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:17:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-13 17:17:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:17:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-13 17:17:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-13 17:17:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:17:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-13 17:17:59,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:17:59,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051236576] [2022-07-13 17:17:59,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051236576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:17:59,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:17:59,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 17:17:59,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12284641] [2022-07-13 17:17:59,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:17:59,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 17:17:59,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:17:59,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 17:17:59,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:17:59,133 INFO L87 Difference]: Start difference. First operand 5352 states and 8493 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-13 17:18:09,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:09,186 INFO L93 Difference]: Finished difference Result 21511 states and 36158 transitions. [2022-07-13 17:18:09,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 17:18:09,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 170 [2022-07-13 17:18:09,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:09,254 INFO L225 Difference]: With dead ends: 21511 [2022-07-13 17:18:09,254 INFO L226 Difference]: Without dead ends: 16237 [2022-07-13 17:18:09,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2022-07-13 17:18:09,282 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 5510 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 4869 mSolverCounterSat, 2554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5692 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 7423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2554 IncrementalHoareTripleChecker+Valid, 4869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:09,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5692 Valid, 2372 Invalid, 7423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2554 Valid, 4869 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-07-13 17:18:09,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16237 states. [2022-07-13 17:18:10,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16237 to 5376. [2022-07-13 17:18:10,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 4031 states have (on average 1.518729843711238) internal successors, (6122), 4183 states have internal predecessors, (6122), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-13 17:18:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 8517 transitions. [2022-07-13 17:18:10,117 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 8517 transitions. Word has length 170 [2022-07-13 17:18:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:10,118 INFO L495 AbstractCegarLoop]: Abstraction has 5376 states and 8517 transitions. [2022-07-13 17:18:10,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-13 17:18:10,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 8517 transitions. [2022-07-13 17:18:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 17:18:10,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:10,196 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:10,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-13 17:18:10,196 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:10,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:10,197 INFO L85 PathProgramCache]: Analyzing trace with hash -561018042, now seen corresponding path program 1 times [2022-07-13 17:18:10,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:10,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598379739] [2022-07-13 17:18:10,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:10,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:18:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:18:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:18:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:18:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:18:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:18:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 17:18:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 17:18:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-13 17:18:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-13 17:18:10,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:10,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598379739] [2022-07-13 17:18:10,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598379739] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:18:10,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430212911] [2022-07-13 17:18:10,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:10,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:10,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:18:10,512 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) [2022-07-13 17:18:10,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 17:18:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:10,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:18:10,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:18:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 17:18:10,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:18:10,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430212911] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:10,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:18:10,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-13 17:18:10,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581524462] [2022-07-13 17:18:10,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:10,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:18:10,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:10,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:18:10,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:18:10,771 INFO L87 Difference]: Start difference. First operand 5376 states and 8517 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 17:18:11,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:11,480 INFO L93 Difference]: Finished difference Result 10908 states and 17508 transitions. [2022-07-13 17:18:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:18:11,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 178 [2022-07-13 17:18:11,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:11,503 INFO L225 Difference]: With dead ends: 10908 [2022-07-13 17:18:11,503 INFO L226 Difference]: Without dead ends: 5610 [2022-07-13 17:18:11,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:18:11,521 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 213 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:11,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2430 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:18:11,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-07-13 17:18:12,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5610. [2022-07-13 17:18:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5610 states, 4259 states have (on average 1.5402676684667762) internal successors, (6560), 4411 states have internal predecessors, (6560), 1031 states have call successors, (1031), 267 states have call predecessors, (1031), 319 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-13 17:18:12,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5610 states to 5610 states and 8955 transitions. [2022-07-13 17:18:12,213 INFO L78 Accepts]: Start accepts. Automaton has 5610 states and 8955 transitions. Word has length 178 [2022-07-13 17:18:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:12,213 INFO L495 AbstractCegarLoop]: Abstraction has 5610 states and 8955 transitions. [2022-07-13 17:18:12,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 17:18:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5610 states and 8955 transitions. [2022-07-13 17:18:12,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-13 17:18:12,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:12,218 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:12,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-13 17:18:12,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-13 17:18:12,432 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:12,432 INFO L85 PathProgramCache]: Analyzing trace with hash 905496303, now seen corresponding path program 1 times [2022-07-13 17:18:12,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:12,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485331537] [2022-07-13 17:18:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:12,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:18:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:18:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:18:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:18:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:18:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-13 17:18:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-13 17:18:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-13 17:18:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-13 17:18:12,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:12,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485331537] [2022-07-13 17:18:12,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485331537] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:18:12,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717779581] [2022-07-13 17:18:12,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:12,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:18:12,726 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) [2022-07-13 17:18:12,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 17:18:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:12,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:18:12,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:18:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-13 17:18:12,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:18:12,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717779581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:12,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:18:12,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-13 17:18:12,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307089114] [2022-07-13 17:18:12,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:12,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:18:12,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:12,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:18:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:18:12,987 INFO L87 Difference]: Start difference. First operand 5610 states and 8955 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 17:18:13,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:13,743 INFO L93 Difference]: Finished difference Result 11376 states and 18372 transitions. [2022-07-13 17:18:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:18:13,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 183 [2022-07-13 17:18:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:13,767 INFO L225 Difference]: With dead ends: 11376 [2022-07-13 17:18:13,768 INFO L226 Difference]: Without dead ends: 5844 [2022-07-13 17:18:13,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:18:13,786 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 211 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:13,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2430 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:18:13,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2022-07-13 17:18:14,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 5844. [2022-07-13 17:18:14,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5844 states, 4487 states have (on average 1.559616670381101) internal successors, (6998), 4639 states have internal predecessors, (6998), 1031 states have call successors, (1031), 273 states have call predecessors, (1031), 325 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-13 17:18:14,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5844 states to 5844 states and 9393 transitions. [2022-07-13 17:18:14,538 INFO L78 Accepts]: Start accepts. Automaton has 5844 states and 9393 transitions. Word has length 183 [2022-07-13 17:18:14,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:14,538 INFO L495 AbstractCegarLoop]: Abstraction has 5844 states and 9393 transitions. [2022-07-13 17:18:14,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 17:18:14,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5844 states and 9393 transitions. [2022-07-13 17:18:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-13 17:18:14,543 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:14,543 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:14,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 17:18:14,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:14,745 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:14,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash 272185695, now seen corresponding path program 1 times [2022-07-13 17:18:14,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:14,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32192698] [2022-07-13 17:18:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:14,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:14,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:18:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:18:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:18:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 17:18:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-13 17:18:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-13 17:18:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-13 17:18:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,058 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-13 17:18:15,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:15,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32192698] [2022-07-13 17:18:15,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32192698] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:18:15,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416688023] [2022-07-13 17:18:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:15,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:15,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:18:15,060 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) [2022-07-13 17:18:15,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 17:18:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:15,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:18:15,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:18:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-13 17:18:15,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:18:15,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416688023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:15,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:18:15,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-13 17:18:15,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645880078] [2022-07-13 17:18:15,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:15,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:18:15,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:15,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:18:15,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:18:15,322 INFO L87 Difference]: Start difference. First operand 5844 states and 9393 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 17:18:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:16,084 INFO L93 Difference]: Finished difference Result 11844 states and 19236 transitions. [2022-07-13 17:18:16,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:18:16,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 187 [2022-07-13 17:18:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:16,101 INFO L225 Difference]: With dead ends: 11844 [2022-07-13 17:18:16,102 INFO L226 Difference]: Without dead ends: 6078 [2022-07-13 17:18:16,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:18:16,114 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 209 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:16,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2430 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:18:16,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2022-07-13 17:18:16,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 6078. [2022-07-13 17:18:16,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6078 states, 4715 states have (on average 1.5770943796394485) internal successors, (7436), 4867 states have internal predecessors, (7436), 1031 states have call successors, (1031), 279 states have call predecessors, (1031), 331 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-13 17:18:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6078 states to 6078 states and 9831 transitions. [2022-07-13 17:18:16,744 INFO L78 Accepts]: Start accepts. Automaton has 6078 states and 9831 transitions. Word has length 187 [2022-07-13 17:18:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:16,744 INFO L495 AbstractCegarLoop]: Abstraction has 6078 states and 9831 transitions. [2022-07-13 17:18:16,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 17:18:16,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6078 states and 9831 transitions. [2022-07-13 17:18:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 17:18:16,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:16,750 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:16,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 17:18:16,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-13 17:18:16,956 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:16,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:16,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1232201702, now seen corresponding path program 1 times [2022-07-13 17:18:16,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:16,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390932523] [2022-07-13 17:18:16,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:16,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:18:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 17:18:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-13 17:18:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-13 17:18:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-13 17:18:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 17:18:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,235 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-13 17:18:17,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:17,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390932523] [2022-07-13 17:18:17,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390932523] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:18:17,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438124337] [2022-07-13 17:18:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:17,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:17,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:18:17,248 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) [2022-07-13 17:18:17,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 17:18:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:17,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:18:17,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:18:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-13 17:18:17,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:18:17,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438124337] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:17,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:18:17,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-13 17:18:17,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523007691] [2022-07-13 17:18:17,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:17,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:18:17,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:17,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:18:17,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:18:17,488 INFO L87 Difference]: Start difference. First operand 6078 states and 9831 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 17:18:18,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:18,230 INFO L93 Difference]: Finished difference Result 12312 states and 20100 transitions. [2022-07-13 17:18:18,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:18:18,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 190 [2022-07-13 17:18:18,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:18,254 INFO L225 Difference]: With dead ends: 12312 [2022-07-13 17:18:18,254 INFO L226 Difference]: Without dead ends: 6312 [2022-07-13 17:18:18,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:18:18,274 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 207 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:18,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2430 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:18:18,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6312 states. [2022-07-13 17:18:18,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6312 to 6312. [2022-07-13 17:18:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6312 states, 4943 states have (on average 1.5929597410479466) internal successors, (7874), 5095 states have internal predecessors, (7874), 1031 states have call successors, (1031), 285 states have call predecessors, (1031), 337 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2022-07-13 17:18:18,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6312 states to 6312 states and 10269 transitions. [2022-07-13 17:18:18,916 INFO L78 Accepts]: Start accepts. Automaton has 6312 states and 10269 transitions. Word has length 190 [2022-07-13 17:18:18,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:18,916 INFO L495 AbstractCegarLoop]: Abstraction has 6312 states and 10269 transitions. [2022-07-13 17:18:18,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-13 17:18:18,916 INFO L276 IsEmpty]: Start isEmpty. Operand 6312 states and 10269 transitions. [2022-07-13 17:18:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-13 17:18:18,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:18,920 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:18,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-13 17:18:19,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-07-13 17:18:19,136 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:19,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:19,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1847695126, now seen corresponding path program 1 times [2022-07-13 17:18:19,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:19,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301175321] [2022-07-13 17:18:19,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:19,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:18:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:18:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:18:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-13 17:18:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-13 17:18:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-13 17:18:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-13 17:18:19,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:19,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301175321] [2022-07-13 17:18:19,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301175321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:19,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:18:19,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 17:18:19,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032887705] [2022-07-13 17:18:19,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:19,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 17:18:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:19,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 17:18:19,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:18:19,422 INFO L87 Difference]: Start difference. First operand 6312 states and 10269 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-13 17:18:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:29,954 INFO L93 Difference]: Finished difference Result 23900 states and 40902 transitions. [2022-07-13 17:18:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 17:18:29,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 192 [2022-07-13 17:18:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:30,030 INFO L225 Difference]: With dead ends: 23900 [2022-07-13 17:18:30,031 INFO L226 Difference]: Without dead ends: 17570 [2022-07-13 17:18:30,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=134, Invalid=246, Unknown=0, NotChecked=0, Total=380 [2022-07-13 17:18:30,061 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 3740 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 4708 mSolverCounterSat, 1562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 6270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1562 IncrementalHoareTripleChecker+Valid, 4708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:30,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3932 Valid, 2403 Invalid, 6270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1562 Valid, 4708 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-07-13 17:18:30,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17570 states. [2022-07-13 17:18:31,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17570 to 13220. [2022-07-13 17:18:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13220 states, 10240 states have (on average 1.55810546875) internal successors, (15955), 10587 states have internal predecessors, (15955), 2268 states have call successors, (2268), 555 states have call predecessors, (2268), 711 states have return successors, (3047), 2251 states have call predecessors, (3047), 2252 states have call successors, (3047) [2022-07-13 17:18:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13220 states to 13220 states and 21270 transitions. [2022-07-13 17:18:31,753 INFO L78 Accepts]: Start accepts. Automaton has 13220 states and 21270 transitions. Word has length 192 [2022-07-13 17:18:31,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:31,754 INFO L495 AbstractCegarLoop]: Abstraction has 13220 states and 21270 transitions. [2022-07-13 17:18:31,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 4 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-13 17:18:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 13220 states and 21270 transitions. [2022-07-13 17:18:31,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-13 17:18:31,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:31,759 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:31,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-13 17:18:31,760 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:31,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:31,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2052670661, now seen corresponding path program 1 times [2022-07-13 17:18:31,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:31,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326308682] [2022-07-13 17:18:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:31,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:31,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:31,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:31,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:18:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:31,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:18:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:18:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-13 17:18:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-13 17:18:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-13 17:18:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-07-13 17:18:32,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:32,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326308682] [2022-07-13 17:18:32,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326308682] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:18:32,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539082070] [2022-07-13 17:18:32,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:32,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:32,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:18:32,095 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) [2022-07-13 17:18:32,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 17:18:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:32,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 37 conjunts are in the unsatisfiable core [2022-07-13 17:18:32,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:18:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-13 17:18:32,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:18:32,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539082070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:32,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:18:32,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2022-07-13 17:18:32,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598123402] [2022-07-13 17:18:32,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:32,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 17:18:32,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:32,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 17:18:32,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:18:32,488 INFO L87 Difference]: Start difference. First operand 13220 states and 21270 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-13 17:18:38,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:38,017 INFO L93 Difference]: Finished difference Result 41627 states and 68412 transitions. [2022-07-13 17:18:38,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 17:18:38,017 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 192 [2022-07-13 17:18:38,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:38,095 INFO L225 Difference]: With dead ends: 41627 [2022-07-13 17:18:38,096 INFO L226 Difference]: Without dead ends: 17719 [2022-07-13 17:18:38,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-07-13 17:18:38,173 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 1967 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 4446 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 4987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 4446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:38,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 2983 Invalid, 4987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 4446 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-13 17:18:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17719 states. [2022-07-13 17:18:40,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17719 to 17254. [2022-07-13 17:18:40,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17254 states, 13302 states have (on average 1.5559314388813712) internal successors, (20697), 13804 states have internal predecessors, (20697), 2979 states have call successors, (2979), 729 states have call predecessors, (2979), 972 states have return successors, (4065), 2962 states have call predecessors, (4065), 2963 states have call successors, (4065) [2022-07-13 17:18:40,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17254 states to 17254 states and 27741 transitions. [2022-07-13 17:18:40,256 INFO L78 Accepts]: Start accepts. Automaton has 17254 states and 27741 transitions. Word has length 192 [2022-07-13 17:18:40,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:40,256 INFO L495 AbstractCegarLoop]: Abstraction has 17254 states and 27741 transitions. [2022-07-13 17:18:40,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-13 17:18:40,256 INFO L276 IsEmpty]: Start isEmpty. Operand 17254 states and 27741 transitions. [2022-07-13 17:18:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-13 17:18:40,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:40,266 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:40,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 17:18:40,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-07-13 17:18:40,467 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:40,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:40,467 INFO L85 PathProgramCache]: Analyzing trace with hash 748385493, now seen corresponding path program 1 times [2022-07-13 17:18:40,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:40,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452269048] [2022-07-13 17:18:40,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:40,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:18:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:18:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:18:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-13 17:18:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-13 17:18:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-13 17:18:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-13 17:18:40,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:40,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452269048] [2022-07-13 17:18:40,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452269048] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:40,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:18:40,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:18:40,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470335721] [2022-07-13 17:18:40,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:40,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:18:40,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:40,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:18:40,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:18:40,787 INFO L87 Difference]: Start difference. First operand 17254 states and 27741 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-13 17:18:47,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:47,982 INFO L93 Difference]: Finished difference Result 39125 states and 64610 transitions. [2022-07-13 17:18:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 17:18:47,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2022-07-13 17:18:47,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:48,063 INFO L225 Difference]: With dead ends: 39125 [2022-07-13 17:18:48,064 INFO L226 Difference]: Without dead ends: 21821 [2022-07-13 17:18:48,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:18:48,104 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 861 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 2537 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:48,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1910 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2537 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-13 17:18:48,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21821 states. [2022-07-13 17:18:50,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21821 to 17276. [2022-07-13 17:18:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17276 states, 13324 states have (on average 1.5517862503752626) internal successors, (20676), 13826 states have internal predecessors, (20676), 2979 states have call successors, (2979), 729 states have call predecessors, (2979), 972 states have return successors, (4065), 2962 states have call predecessors, (4065), 2963 states have call successors, (4065) [2022-07-13 17:18:50,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17276 states to 17276 states and 27720 transitions. [2022-07-13 17:18:50,309 INFO L78 Accepts]: Start accepts. Automaton has 17276 states and 27720 transitions. Word has length 192 [2022-07-13 17:18:50,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:50,309 INFO L495 AbstractCegarLoop]: Abstraction has 17276 states and 27720 transitions. [2022-07-13 17:18:50,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-13 17:18:50,309 INFO L276 IsEmpty]: Start isEmpty. Operand 17276 states and 27720 transitions. [2022-07-13 17:18:50,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-13 17:18:50,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:50,319 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:50,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-13 17:18:50,319 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:50,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:50,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1449735145, now seen corresponding path program 1 times [2022-07-13 17:18:50,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:50,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978628497] [2022-07-13 17:18:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:50,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:18:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:18:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:18:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:18:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-13 17:18:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-13 17:18:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-13 17:18:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-07-13 17:18:50,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:50,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978628497] [2022-07-13 17:18:50,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978628497] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:18:50,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044386049] [2022-07-13 17:18:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:50,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:50,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:18:50,654 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) [2022-07-13 17:18:50,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 17:18:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:50,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 17:18:50,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:18:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-13 17:18:50,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:18:50,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044386049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:50,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:18:50,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 19 [2022-07-13 17:18:50,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164634446] [2022-07-13 17:18:50,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:50,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:18:50,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:50,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:18:50,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-07-13 17:18:50,921 INFO L87 Difference]: Start difference. First operand 17276 states and 27720 transitions. Second operand has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-13 17:18:52,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:52,332 INFO L93 Difference]: Finished difference Result 27338 states and 43849 transitions. [2022-07-13 17:18:52,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:18:52,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 198 [2022-07-13 17:18:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:52,360 INFO L225 Difference]: With dead ends: 27338 [2022-07-13 17:18:52,360 INFO L226 Difference]: Without dead ends: 9777 [2022-07-13 17:18:52,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-07-13 17:18:52,392 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 45 mSDsluCounter, 4296 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:52,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5170 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:18:52,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9777 states. [2022-07-13 17:18:53,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 9777. [2022-07-13 17:18:53,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9777 states, 7665 states have (on average 1.565818656229615) internal successors, (12002), 7947 states have internal predecessors, (12002), 1557 states have call successors, (1557), 441 states have call predecessors, (1557), 554 states have return successors, (2026), 1508 states have call predecessors, (2026), 1549 states have call successors, (2026) [2022-07-13 17:18:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9777 states to 9777 states and 15585 transitions. [2022-07-13 17:18:53,487 INFO L78 Accepts]: Start accepts. Automaton has 9777 states and 15585 transitions. Word has length 198 [2022-07-13 17:18:53,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:53,487 INFO L495 AbstractCegarLoop]: Abstraction has 9777 states and 15585 transitions. [2022-07-13 17:18:53,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-13 17:18:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 9777 states and 15585 transitions. [2022-07-13 17:18:53,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-07-13 17:18:53,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:53,497 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:53,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-07-13 17:18:53,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:53,697 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:53,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:53,698 INFO L85 PathProgramCache]: Analyzing trace with hash -166965064, now seen corresponding path program 1 times [2022-07-13 17:18:53,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:53,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428185426] [2022-07-13 17:18:53,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:53,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:53,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:18:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:18:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:18:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:18:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:18:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:18:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:18:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:18:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:18:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:18:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:18:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:18:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:18:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:18:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:18:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:18:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:18:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 17:18:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 17:18:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-13 17:18:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 17:18:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 17:18:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-07-13 17:18:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-07-13 17:18:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-07-13 17:18:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-07-13 17:18:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-07-13 17:18:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 88 proven. 137 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2022-07-13 17:18:54,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:54,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428185426] [2022-07-13 17:18:54,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428185426] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:18:54,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630394455] [2022-07-13 17:18:54,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:54,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:54,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:18:54,299 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) [2022-07-13 17:18:54,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 17:18:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:54,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 4087 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:18:54,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:18:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 690 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-07-13 17:18:54,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:18:54,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630394455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:54,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:18:54,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-13 17:18:54,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743341321] [2022-07-13 17:18:54,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:54,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:18:54,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:54,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:18:54,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-13 17:18:54,836 INFO L87 Difference]: Start difference. First operand 9777 states and 15585 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-13 17:18:56,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:56,162 INFO L93 Difference]: Finished difference Result 19572 states and 31517 transitions. [2022-07-13 17:18:56,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:18:56,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 554 [2022-07-13 17:18:56,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:56,196 INFO L225 Difference]: With dead ends: 19572 [2022-07-13 17:18:56,196 INFO L226 Difference]: Without dead ends: 9867 [2022-07-13 17:18:56,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:18:56,221 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 38 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:56,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2519 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:18:56,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2022-07-13 17:18:57,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 9867. [2022-07-13 17:18:57,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9867 states, 7745 states have (on average 1.5677211103938025) internal successors, (12142), 8027 states have internal predecessors, (12142), 1557 states have call successors, (1557), 451 states have call predecessors, (1557), 564 states have return successors, (2026), 1508 states have call predecessors, (2026), 1549 states have call successors, (2026) [2022-07-13 17:18:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9867 states to 9867 states and 15725 transitions. [2022-07-13 17:18:57,308 INFO L78 Accepts]: Start accepts. Automaton has 9867 states and 15725 transitions. Word has length 554 [2022-07-13 17:18:57,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:18:57,308 INFO L495 AbstractCegarLoop]: Abstraction has 9867 states and 15725 transitions. [2022-07-13 17:18:57,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-13 17:18:57,309 INFO L276 IsEmpty]: Start isEmpty. Operand 9867 states and 15725 transitions. [2022-07-13 17:18:57,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-07-13 17:18:57,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:18:57,317 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:18:57,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-13 17:18:57,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-07-13 17:18:57,520 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:18:57,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:18:57,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1640161242, now seen corresponding path program 1 times [2022-07-13 17:18:57,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:18:57,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140125452] [2022-07-13 17:18:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:57,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:18:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:18:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:18:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:18:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:18:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:18:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:18:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:18:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:18:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:18:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:18:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:18:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:18:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:18:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:18:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:18:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:18:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:18:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:18:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:18:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:18:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:18:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:18:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:18:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:18:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:18:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:18:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:18:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:18:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 17:18:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:18:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 17:18:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-13 17:18:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:18:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2022-07-13 17:18:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2022-07-13 17:18:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:18:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-13 17:18:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-07-13 17:18:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 90 proven. 136 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-07-13 17:18:58,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:18:58,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140125452] [2022-07-13 17:18:58,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140125452] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:18:58,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366776059] [2022-07-13 17:18:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:18:58,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:18:58,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:18:58,126 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) [2022-07-13 17:18:58,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-13 17:18:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:18:58,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 4088 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:18:58,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:18:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-13 17:18:58,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:18:58,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366776059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:18:58,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:18:58,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-13 17:18:58,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548804529] [2022-07-13 17:18:58,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:18:58,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:18:58,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:18:58,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:18:58,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-13 17:18:58,624 INFO L87 Difference]: Start difference. First operand 9867 states and 15725 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-13 17:18:59,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:18:59,799 INFO L93 Difference]: Finished difference Result 19752 states and 31757 transitions. [2022-07-13 17:18:59,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:18:59,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 555 [2022-07-13 17:18:59,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:18:59,835 INFO L225 Difference]: With dead ends: 19752 [2022-07-13 17:18:59,835 INFO L226 Difference]: Without dead ends: 9957 [2022-07-13 17:18:59,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:18:59,862 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 36 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:18:59,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2519 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:18:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9957 states. [2022-07-13 17:19:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9957 to 9957. [2022-07-13 17:19:00,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9957 states, 7825 states have (on average 1.5695846645367413) internal successors, (12282), 8107 states have internal predecessors, (12282), 1557 states have call successors, (1557), 461 states have call predecessors, (1557), 574 states have return successors, (2026), 1508 states have call predecessors, (2026), 1549 states have call successors, (2026) [2022-07-13 17:19:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9957 states to 9957 states and 15865 transitions. [2022-07-13 17:19:00,952 INFO L78 Accepts]: Start accepts. Automaton has 9957 states and 15865 transitions. Word has length 555 [2022-07-13 17:19:00,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:19:00,952 INFO L495 AbstractCegarLoop]: Abstraction has 9957 states and 15865 transitions. [2022-07-13 17:19:00,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-13 17:19:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand 9957 states and 15865 transitions. [2022-07-13 17:19:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-07-13 17:19:00,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:19:00,962 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:19:00,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-13 17:19:01,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-07-13 17:19:01,166 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:19:01,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:19:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1653173590, now seen corresponding path program 1 times [2022-07-13 17:19:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:19:01,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511440559] [2022-07-13 17:19:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:01,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:19:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:19:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:19:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:19:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:19:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:19:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:19:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:19:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:19:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:19:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:19:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:19:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-13 17:19:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 17:19:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-13 17:19:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-07-13 17:19:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-07-13 17:19:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-07-13 17:19:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-13 17:19:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-07-13 17:19:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 121 proven. 138 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2022-07-13 17:19:01,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:19:01,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511440559] [2022-07-13 17:19:01,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511440559] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:19:01,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445660590] [2022-07-13 17:19:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:01,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:01,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:19:01,816 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:19:01,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-13 17:19:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:02,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 4089 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-13 17:19:02,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:19:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 711 proven. 0 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2022-07-13 17:19:02,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:19:02,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445660590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:19:02,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:19:02,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21] total 27 [2022-07-13 17:19:02,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486742207] [2022-07-13 17:19:02,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:19:02,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 17:19:02,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:19:02,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 17:19:02,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2022-07-13 17:19:02,631 INFO L87 Difference]: Start difference. First operand 9957 states and 15865 transitions. Second operand has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 8 states have internal predecessors, (233), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-13 17:19:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:19:09,696 INFO L93 Difference]: Finished difference Result 37045 states and 61283 transitions. [2022-07-13 17:19:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 17:19:09,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 8 states have internal predecessors, (233), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) Word has length 556 [2022-07-13 17:19:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:19:09,812 INFO L225 Difference]: With dead ends: 37045 [2022-07-13 17:19:09,812 INFO L226 Difference]: Without dead ends: 27143 [2022-07-13 17:19:09,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 676 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=1059, Unknown=0, NotChecked=0, Total=1190 [2022-07-13 17:19:09,859 INFO L413 NwaCegarLoop]: 1425 mSDtfsCounter, 2488 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 8310 mSolverCounterSat, 897 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2712 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 9207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 897 IncrementalHoareTripleChecker+Valid, 8310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:19:09,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2712 Valid, 3531 Invalid, 9207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [897 Valid, 8310 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-13 17:19:09,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27143 states. [2022-07-13 17:19:12,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27143 to 24285. [2022-07-13 17:19:12,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24285 states, 19103 states have (on average 1.5628958802282364) internal successors, (29856), 19781 states have internal predecessors, (29856), 3803 states have call successors, (3803), 1160 states have call predecessors, (3803), 1378 states have return successors, (5490), 3698 states have call predecessors, (5490), 3784 states have call successors, (5490) [2022-07-13 17:19:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24285 states to 24285 states and 39149 transitions. [2022-07-13 17:19:12,719 INFO L78 Accepts]: Start accepts. Automaton has 24285 states and 39149 transitions. Word has length 556 [2022-07-13 17:19:12,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:19:12,719 INFO L495 AbstractCegarLoop]: Abstraction has 24285 states and 39149 transitions. [2022-07-13 17:19:12,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 8 states have internal predecessors, (233), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2022-07-13 17:19:12,720 INFO L276 IsEmpty]: Start isEmpty. Operand 24285 states and 39149 transitions. [2022-07-13 17:19:12,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-07-13 17:19:12,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:19:12,732 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:19:12,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-13 17:19:12,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-07-13 17:19:12,948 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:19:12,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:19:12,948 INFO L85 PathProgramCache]: Analyzing trace with hash -734679930, now seen corresponding path program 1 times [2022-07-13 17:19:12,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:19:12,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629967316] [2022-07-13 17:19:12,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:12,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:19:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:19:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:19:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:19:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:19:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:19:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 17:19:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:19:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:19:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:19:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:19:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:19:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-13 17:19:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 17:19:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-13 17:19:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-07-13 17:19:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-07-13 17:19:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-07-13 17:19:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-13 17:19:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-07-13 17:19:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 90 proven. 136 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-07-13 17:19:13,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:19:13,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629967316] [2022-07-13 17:19:13,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629967316] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:19:13,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357594780] [2022-07-13 17:19:13,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:13,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:13,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:19:13,672 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:19:13,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-13 17:19:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:14,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 4089 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:19:14,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:19:14,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-13 17:19:14,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:19:14,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357594780] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:19:14,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:19:14,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-13 17:19:14,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90780744] [2022-07-13 17:19:14,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:19:14,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:19:14,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:19:14,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:19:14,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-13 17:19:14,166 INFO L87 Difference]: Start difference. First operand 24285 states and 39149 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-13 17:19:17,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:19:17,076 INFO L93 Difference]: Finished difference Result 48362 states and 78473 transitions. [2022-07-13 17:19:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:19:17,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 556 [2022-07-13 17:19:17,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:19:17,169 INFO L225 Difference]: With dead ends: 48362 [2022-07-13 17:19:17,169 INFO L226 Difference]: Without dead ends: 24580 [2022-07-13 17:19:17,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:19:17,238 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 34 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:19:17,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2519 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:19:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24580 states. [2022-07-13 17:19:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24580 to 24528. [2022-07-13 17:19:20,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24528 states, 19319 states have (on average 1.564987835809307) internal successors, (30234), 19997 states have internal predecessors, (30234), 3803 states have call successors, (3803), 1187 states have call predecessors, (3803), 1405 states have return successors, (5166), 3698 states have call predecessors, (5166), 3784 states have call successors, (5166) [2022-07-13 17:19:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24528 states to 24528 states and 39203 transitions. [2022-07-13 17:19:20,118 INFO L78 Accepts]: Start accepts. Automaton has 24528 states and 39203 transitions. Word has length 556 [2022-07-13 17:19:20,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:19:20,118 INFO L495 AbstractCegarLoop]: Abstraction has 24528 states and 39203 transitions. [2022-07-13 17:19:20,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-13 17:19:20,119 INFO L276 IsEmpty]: Start isEmpty. Operand 24528 states and 39203 transitions. [2022-07-13 17:19:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-07-13 17:19:20,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:19:20,132 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:19:20,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-13 17:19:20,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-07-13 17:19:20,348 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:19:20,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:19:20,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1775295270, now seen corresponding path program 1 times [2022-07-13 17:19:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:19:20,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341798367] [2022-07-13 17:19:20,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:19:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:19:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:19:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:19:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:19:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 17:19:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 17:19:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:19:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:19:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:19:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:19:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:19:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:19:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 17:19:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 17:19:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-13 17:19:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2022-07-13 17:19:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2022-07-13 17:19:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-13 17:19:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-07-13 17:19:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 94 proven. 134 refuted. 0 times theorem prover too weak. 1255 trivial. 0 not checked. [2022-07-13 17:19:20,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:19:20,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341798367] [2022-07-13 17:19:20,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341798367] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:19:20,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495778775] [2022-07-13 17:19:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:20,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:20,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:19:20,938 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:19:20,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-13 17:19:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:21,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 4088 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 17:19:21,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:19:21,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 696 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-07-13 17:19:21,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:19:21,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495778775] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:19:21,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:19:21,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-13 17:19:21,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170771018] [2022-07-13 17:19:21,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:19:21,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:19:21,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:19:21,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:19:21,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-07-13 17:19:21,420 INFO L87 Difference]: Start difference. First operand 24528 states and 39203 transitions. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-13 17:19:24,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:19:24,379 INFO L93 Difference]: Finished difference Result 38540 states and 61947 transitions. [2022-07-13 17:19:24,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:19:24,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 555 [2022-07-13 17:19:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:19:24,456 INFO L225 Difference]: With dead ends: 38540 [2022-07-13 17:19:24,456 INFO L226 Difference]: Without dead ends: 24696 [2022-07-13 17:19:24,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:19:24,494 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 42 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:19:24,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2546 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:19:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24696 states. [2022-07-13 17:19:27,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24696 to 24696. [2022-07-13 17:19:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24696 states, 19459 states have (on average 1.565188344724806) internal successors, (30457), 20137 states have internal predecessors, (30457), 3817 states have call successors, (3817), 1201 states have call predecessors, (3817), 1419 states have return successors, (5180), 3712 states have call predecessors, (5180), 3798 states have call successors, (5180) [2022-07-13 17:19:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24696 states to 24696 states and 39454 transitions. [2022-07-13 17:19:27,517 INFO L78 Accepts]: Start accepts. Automaton has 24696 states and 39454 transitions. Word has length 555 [2022-07-13 17:19:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:19:27,518 INFO L495 AbstractCegarLoop]: Abstraction has 24696 states and 39454 transitions. [2022-07-13 17:19:27,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-13 17:19:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 24696 states and 39454 transitions. [2022-07-13 17:19:27,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-07-13 17:19:27,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:19:27,530 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:19:27,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-13 17:19:27,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:27,731 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:19:27,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:19:27,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1919621652, now seen corresponding path program 1 times [2022-07-13 17:19:27,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:19:27,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633025637] [2022-07-13 17:19:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:27,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:19:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:19:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:19:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:19:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:19:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 17:19:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:19:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:19:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:19:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:19:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 17:19:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 17:19:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-13 17:19:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 17:19:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 17:19:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-07-13 17:19:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-07-13 17:19:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-07-13 17:19:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-07-13 17:19:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-07-13 17:19:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 154 proven. 119 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2022-07-13 17:19:28,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:19:28,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633025637] [2022-07-13 17:19:28,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633025637] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:19:28,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733092238] [2022-07-13 17:19:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:28,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:19:28,386 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:19:28,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-13 17:19:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:28,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 4087 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-13 17:19:28,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:19:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 210 proven. 15 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2022-07-13 17:19:29,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 17:19:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1382 trivial. 0 not checked. [2022-07-13 17:19:30,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733092238] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-13 17:19:30,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-13 17:19:30,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16, 8] total 29 [2022-07-13 17:19:30,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49518375] [2022-07-13 17:19:30,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:19:30,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:19:30,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:19:30,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:19:30,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2022-07-13 17:19:30,990 INFO L87 Difference]: Start difference. First operand 24696 states and 39454 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2022-07-13 17:19:35,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:19:35,796 INFO L93 Difference]: Finished difference Result 42670 states and 68462 transitions. [2022-07-13 17:19:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:19:35,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) Word has length 554 [2022-07-13 17:19:35,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:19:35,923 INFO L225 Difference]: With dead ends: 42670 [2022-07-13 17:19:35,924 INFO L226 Difference]: Without dead ends: 32285 [2022-07-13 17:19:35,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1251 GetRequests, 1215 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2022-07-13 17:19:35,970 INFO L413 NwaCegarLoop]: 980 mSDtfsCounter, 1160 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2378 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 17:19:35,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 2378 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 17:19:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32285 states. [2022-07-13 17:19:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32285 to 32010. [2022-07-13 17:19:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32010 states, 25392 states have (on average 1.5671471329552615) internal successors, (39793), 26205 states have internal predecessors, (39793), 4852 states have call successors, (4852), 1530 states have call predecessors, (4852), 1765 states have return successors, (6508), 4597 states have call predecessors, (6508), 4827 states have call successors, (6508) [2022-07-13 17:19:39,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32010 states to 32010 states and 51153 transitions. [2022-07-13 17:19:39,760 INFO L78 Accepts]: Start accepts. Automaton has 32010 states and 51153 transitions. Word has length 554 [2022-07-13 17:19:39,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:19:39,760 INFO L495 AbstractCegarLoop]: Abstraction has 32010 states and 51153 transitions. [2022-07-13 17:19:39,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (39), 7 states have call predecessors, (39), 6 states have call successors, (39) [2022-07-13 17:19:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 32010 states and 51153 transitions. [2022-07-13 17:19:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2022-07-13 17:19:39,776 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:19:39,776 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:19:39,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-13 17:19:39,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-07-13 17:19:39,978 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:19:39,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:19:39,978 INFO L85 PathProgramCache]: Analyzing trace with hash -2039393426, now seen corresponding path program 1 times [2022-07-13 17:19:39,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:19:39,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263486936] [2022-07-13 17:19:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:19:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:19:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:19:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:19:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:19:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:19:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:19:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:19:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:19:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:19:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:19:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-13 17:19:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 17:19:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-13 17:19:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-13 17:19:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2022-07-13 17:19:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-07-13 17:19:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-07-13 17:19:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-07-13 17:19:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2022-07-13 17:19:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 72 proven. 145 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2022-07-13 17:19:40,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:19:40,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263486936] [2022-07-13 17:19:40,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263486936] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:19:40,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741470613] [2022-07-13 17:19:40,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:40,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:40,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:19:40,632 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:19:40,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-13 17:19:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:41,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 4302 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:19:41,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:19:41,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-13 17:19:41,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:19:41,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741470613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:19:41,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:19:41,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-13 17:19:41,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688235334] [2022-07-13 17:19:41,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:19:41,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:19:41,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:19:41,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:19:41,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:19:41,147 INFO L87 Difference]: Start difference. First operand 32010 states and 51153 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-13 17:19:44,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:19:44,877 INFO L93 Difference]: Finished difference Result 53922 states and 86997 transitions. [2022-07-13 17:19:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:19:44,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 570 [2022-07-13 17:19:44,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:19:45,008 INFO L225 Difference]: With dead ends: 53922 [2022-07-13 17:19:45,008 INFO L226 Difference]: Without dead ends: 33063 [2022-07-13 17:19:45,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 694 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-13 17:19:45,090 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 210 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:19:45,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2394 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:19:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33063 states. [2022-07-13 17:19:49,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33063 to 33063. [2022-07-13 17:19:49,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33063 states, 26391 states have (on average 1.5786442347770073) internal successors, (41662), 27204 states have internal predecessors, (41662), 4879 states have call successors, (4879), 1557 states have call predecessors, (4879), 1792 states have return successors, (6535), 4624 states have call predecessors, (6535), 4854 states have call successors, (6535) [2022-07-13 17:19:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33063 states to 33063 states and 53076 transitions. [2022-07-13 17:19:49,263 INFO L78 Accepts]: Start accepts. Automaton has 33063 states and 53076 transitions. Word has length 570 [2022-07-13 17:19:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:19:49,263 INFO L495 AbstractCegarLoop]: Abstraction has 33063 states and 53076 transitions. [2022-07-13 17:19:49,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-13 17:19:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 33063 states and 53076 transitions. [2022-07-13 17:19:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2022-07-13 17:19:49,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:19:49,280 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:19:49,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-07-13 17:19:49,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:49,481 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:19:49,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:19:49,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1113875659, now seen corresponding path program 1 times [2022-07-13 17:19:49,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:19:49,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754635596] [2022-07-13 17:19:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:49,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:19:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:19:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:19:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:19:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:19:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 17:19:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:19:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:19:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:19:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:19:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:19:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 17:19:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-13 17:19:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 17:19:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-13 17:19:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-07-13 17:19:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-07-13 17:19:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-13 17:19:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-07-13 17:19:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2022-07-13 17:19:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 66 proven. 148 refuted. 0 times theorem prover too weak. 1281 trivial. 0 not checked. [2022-07-13 17:19:50,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:19:50,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754635596] [2022-07-13 17:19:50,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754635596] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:19:50,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294490842] [2022-07-13 17:19:50,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:50,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:50,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:19:50,125 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:19:50,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-13 17:19:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:50,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 4304 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:19:50,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:19:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 971 trivial. 0 not checked. [2022-07-13 17:19:50,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:19:50,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294490842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:19:50,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:19:50,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-13 17:19:50,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515370214] [2022-07-13 17:19:50,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:19:50,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:19:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:19:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:19:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:19:50,645 INFO L87 Difference]: Start difference. First operand 33063 states and 53076 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-13 17:19:54,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:19:54,456 INFO L93 Difference]: Finished difference Result 55777 states and 90271 transitions. [2022-07-13 17:19:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:19:54,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 572 [2022-07-13 17:19:54,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:19:54,567 INFO L225 Difference]: With dead ends: 55777 [2022-07-13 17:19:54,568 INFO L226 Difference]: Without dead ends: 34701 [2022-07-13 17:19:54,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 696 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-13 17:19:54,629 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 208 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:19:54,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2394 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:19:54,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34701 states. [2022-07-13 17:19:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34701 to 34701. [2022-07-13 17:19:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34701 states, 27945 states have (on average 1.5963857577384148) internal successors, (44611), 28758 states have internal predecessors, (44611), 4921 states have call successors, (4921), 1599 states have call predecessors, (4921), 1834 states have return successors, (6577), 4666 states have call predecessors, (6577), 4896 states have call successors, (6577) [2022-07-13 17:19:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34701 states to 34701 states and 56109 transitions. [2022-07-13 17:19:58,645 INFO L78 Accepts]: Start accepts. Automaton has 34701 states and 56109 transitions. Word has length 572 [2022-07-13 17:19:58,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:19:58,645 INFO L495 AbstractCegarLoop]: Abstraction has 34701 states and 56109 transitions. [2022-07-13 17:19:58,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-13 17:19:58,645 INFO L276 IsEmpty]: Start isEmpty. Operand 34701 states and 56109 transitions. [2022-07-13 17:19:58,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2022-07-13 17:19:58,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:19:58,773 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:19:58,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-07-13 17:19:58,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:58,974 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:19:58,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:19:58,974 INFO L85 PathProgramCache]: Analyzing trace with hash -968119770, now seen corresponding path program 1 times [2022-07-13 17:19:58,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:19:58,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436161372] [2022-07-13 17:19:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:58,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:19:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:19:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:19:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:19:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:19:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:19:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:19:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:19:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:19:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:19:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:19:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:19:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:19:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:19:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:19:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:19:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 17:19:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 17:19:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 17:19:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-13 17:19:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:19:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 17:19:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 17:19:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-13 17:19:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2022-07-13 17:19:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:19:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-07-13 17:19:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-07-13 17:19:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:19:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2022-07-13 17:19:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-07-13 17:19:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:19:59,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 54 proven. 154 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2022-07-13 17:19:59,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:19:59,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436161372] [2022-07-13 17:19:59,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436161372] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:19:59,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80530475] [2022-07-13 17:19:59,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:19:59,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:19:59,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:19:59,630 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:19:59,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-13 17:20:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:00,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 4306 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:20:00,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:20:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2022-07-13 17:20:00,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:20:00,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80530475] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:20:00,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:20:00,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-13 17:20:00,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068293628] [2022-07-13 17:20:00,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:20:00,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:20:00,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:20:00,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:20:00,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:20:00,154 INFO L87 Difference]: Start difference. First operand 34701 states and 56109 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-13 17:20:04,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:20:04,411 INFO L93 Difference]: Finished difference Result 58164 states and 94605 transitions. [2022-07-13 17:20:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:20:04,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 574 [2022-07-13 17:20:04,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:20:04,561 INFO L225 Difference]: With dead ends: 58164 [2022-07-13 17:20:04,561 INFO L226 Difference]: Without dead ends: 36339 [2022-07-13 17:20:04,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 698 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-13 17:20:04,635 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 206 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:20:04,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2394 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:20:04,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36339 states. [2022-07-13 17:20:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36339 to 36339. [2022-07-13 17:20:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36339 states, 29499 states have (on average 1.6122580426455133) internal successors, (47560), 30312 states have internal predecessors, (47560), 4963 states have call successors, (4963), 1641 states have call predecessors, (4963), 1876 states have return successors, (6619), 4708 states have call predecessors, (6619), 4938 states have call successors, (6619) [2022-07-13 17:20:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36339 states to 36339 states and 59142 transitions. [2022-07-13 17:20:08,576 INFO L78 Accepts]: Start accepts. Automaton has 36339 states and 59142 transitions. Word has length 574 [2022-07-13 17:20:08,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:20:08,576 INFO L495 AbstractCegarLoop]: Abstraction has 36339 states and 59142 transitions. [2022-07-13 17:20:08,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-07-13 17:20:08,576 INFO L276 IsEmpty]: Start isEmpty. Operand 36339 states and 59142 transitions. [2022-07-13 17:20:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-07-13 17:20:08,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:20:08,595 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:20:08,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-07-13 17:20:08,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:20:08,796 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:20:08,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:20:08,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1962464486, now seen corresponding path program 1 times [2022-07-13 17:20:08,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:20:08,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798899447] [2022-07-13 17:20:08,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:20:08,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:20:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:08,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:20:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:08,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:08,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:20:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:20:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:20:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:20:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:20:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:20:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:20:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:20:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:20:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:20:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:20:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:20:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:20:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:20:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:20:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:20:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:20:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:20:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:20:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:20:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:20:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:20:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:20:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:20:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:20:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:20:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:20:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:20:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:20:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:20:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:20:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:20:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 17:20:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:20:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:20:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:20:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:20:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:20:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 17:20:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 17:20:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-13 17:20:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-13 17:20:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-13 17:20:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-13 17:20:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:20:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2022-07-13 17:20:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-13 17:20:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2022-07-13 17:20:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-07-13 17:20:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 72 proven. 145 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2022-07-13 17:20:09,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:20:09,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798899447] [2022-07-13 17:20:09,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798899447] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:20:09,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069783693] [2022-07-13 17:20:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:20:09,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:20:09,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:20:09,456 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:20:09,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-13 17:20:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:09,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 4303 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 17:20:09,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:20:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2022-07-13 17:20:10,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:20:10,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069783693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:20:10,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:20:10,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2022-07-13 17:20:10,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294707016] [2022-07-13 17:20:10,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:20:10,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 17:20:10,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:20:10,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 17:20:10,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:20:10,003 INFO L87 Difference]: Start difference. First operand 36339 states and 59142 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-13 17:20:14,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:20:14,203 INFO L93 Difference]: Finished difference Result 59297 states and 96788 transitions. [2022-07-13 17:20:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:20:14,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 571 [2022-07-13 17:20:14,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:20:14,327 INFO L225 Difference]: With dead ends: 59297 [2022-07-13 17:20:14,327 INFO L226 Difference]: Without dead ends: 36519 [2022-07-13 17:20:14,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 695 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-13 17:20:14,388 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 42 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:20:14,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2546 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:20:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36519 states. [2022-07-13 17:20:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36519 to 36519. [2022-07-13 17:20:18,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36519 states, 29649 states have (on average 1.6116901075921617) internal successors, (47785), 30462 states have internal predecessors, (47785), 4978 states have call successors, (4978), 1656 states have call predecessors, (4978), 1891 states have return successors, (6634), 4723 states have call predecessors, (6634), 4953 states have call successors, (6634) [2022-07-13 17:20:18,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36519 states to 36519 states and 59397 transitions. [2022-07-13 17:20:18,318 INFO L78 Accepts]: Start accepts. Automaton has 36519 states and 59397 transitions. Word has length 571 [2022-07-13 17:20:18,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:20:18,319 INFO L495 AbstractCegarLoop]: Abstraction has 36519 states and 59397 transitions. [2022-07-13 17:20:18,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-13 17:20:18,319 INFO L276 IsEmpty]: Start isEmpty. Operand 36519 states and 59397 transitions. [2022-07-13 17:20:18,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2022-07-13 17:20:18,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:20:18,338 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:20:18,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-13 17:20:18,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:20:18,539 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:20:18,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:20:18,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2031934171, now seen corresponding path program 1 times [2022-07-13 17:20:18,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:20:18,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019953441] [2022-07-13 17:20:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:20:18,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:20:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:20:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:20:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 17:20:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:20:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:20:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:20:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:20:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:20:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:20:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:20:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:20:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:18,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:20:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:20:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:20:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-13 17:20:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:20:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:20:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:20:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:20:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:20:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:20:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:20:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:20:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:20:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:20:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:20:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-13 17:20:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:20:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 17:20:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:20:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:20:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:20:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:20:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:20:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:20:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:20:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:20:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-13 17:20:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-13 17:20:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:20:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 17:20:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 17:20:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-13 17:20:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-13 17:20:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-07-13 17:20:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 17:20:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2022-07-13 17:20:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2022-07-13 17:20:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:20:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2022-07-13 17:20:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2022-07-13 17:20:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 154 proven. 119 refuted. 0 times theorem prover too weak. 1222 trivial. 0 not checked. [2022-07-13 17:20:19,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:20:19,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019953441] [2022-07-13 17:20:19,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019953441] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:20:19,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966059839] [2022-07-13 17:20:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:20:19,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:20:19,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:20:19,186 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:20:19,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-13 17:20:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:20:19,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 4301 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-13 17:20:19,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:20:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 123 proven. 84 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-07-13 17:20:20,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 17:20:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 12 proven. 71 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-13 17:20:21,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966059839] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 17:20:21,593 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 17:20:21,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 30 [2022-07-13 17:20:21,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495798179] [2022-07-13 17:20:21,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 17:20:21,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-13 17:20:21,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:20:21,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-13 17:20:21,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=757, Unknown=0, NotChecked=0, Total=870 [2022-07-13 17:20:21,595 INFO L87 Difference]: Start difference. First operand 36519 states and 59397 transitions. Second operand has 30 states, 30 states have (on average 16.666666666666668) internal successors, (500), 22 states have internal predecessors, (500), 14 states have call successors, (121), 14 states have call predecessors, (121), 16 states have return successors, (118), 18 states have call predecessors, (118), 14 states have call successors, (118)