/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-26.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 19:25:40,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 19:25:40,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 19:25:40,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 19:25:40,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 19:25:40,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 19:25:40,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 19:25:40,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 19:25:40,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 19:25:40,710 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 19:25:40,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 19:25:40,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 19:25:40,711 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 19:25:40,712 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 19:25:40,712 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 19:25:40,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 19:25:40,713 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 19:25:40,713 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 19:25:40,713 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 19:25:40,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 19:25:40,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 19:25:40,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 19:25:40,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 19:25:40,715 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 19:25:40,715 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 19:25:40,715 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 19:25:40,715 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 19:25:40,715 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 19:25:40,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 19:25:40,716 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 19:25:40,717 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 19:25:40,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 19:25:40,717 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 19:25:40,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 19:25:40,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 19:25:40,717 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 19:25:40,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 19:25:40,718 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 19:25:40,718 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 19:25:40,718 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 19:25:40,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 19:25:40,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 19:25:40,718 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 19:25:40,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 19:25:40,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 19:25:40,719 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 19:25:40,719 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 19:25:40,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 19:25:40,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 19:25:40,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 19:25:40,938 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 19:25:40,938 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 19:25:40,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-26.i [2023-12-24 19:25:41,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 19:25:42,165 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 19:25:42,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-26.i [2023-12-24 19:25:42,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c9badb2/7c2a7594fb954cbbbb422e95950d7767/FLAG97ef87f8a [2023-12-24 19:25:42,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c9badb2/7c2a7594fb954cbbbb422e95950d7767 [2023-12-24 19:25:42,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 19:25:42,189 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 19:25:42,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 19:25:42,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 19:25:42,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 19:25:42,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aef70eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42, skipping insertion in model container [2023-12-24 19:25:42,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,229 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 19:25:42,354 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-26.i[917,930] [2023-12-24 19:25:42,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 19:25:42,418 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 19:25:42,427 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-26.i[917,930] [2023-12-24 19:25:42,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 19:25:42,469 INFO L206 MainTranslator]: Completed translation [2023-12-24 19:25:42,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42 WrapperNode [2023-12-24 19:25:42,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 19:25:42,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 19:25:42,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 19:25:42,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 19:25:42,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,537 INFO L138 Inliner]: procedures = 36, calls = 150, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 480 [2023-12-24 19:25:42,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 19:25:42,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 19:25:42,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 19:25:42,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 19:25:42,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,597 INFO L175 MemorySlicer]: Split 129 memory accesses to 2 slices as follows [2, 127]. 98 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10]. The 11 writes are split as follows [0, 11]. [2023-12-24 19:25:42,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,619 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 19:25:42,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 19:25:42,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 19:25:42,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 19:25:42,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (1/1) ... [2023-12-24 19:25:42,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 19:25:42,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 19:25:42,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 19:25:42,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 19:25:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 19:25:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 19:25:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 19:25:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-24 19:25:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-24 19:25:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 19:25:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-24 19:25:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-24 19:25:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-24 19:25:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 19:25:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 19:25:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 19:25:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 19:25:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 19:25:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 19:25:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-24 19:25:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-24 19:25:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-24 19:25:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-24 19:25:42,805 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 19:25:42,807 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 19:25:44,131 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 19:25:44,159 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 19:25:44,160 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 19:25:44,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:25:44 BoogieIcfgContainer [2023-12-24 19:25:44,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 19:25:44,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 19:25:44,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 19:25:44,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 19:25:44,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 07:25:42" (1/3) ... [2023-12-24 19:25:44,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd31a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:25:44, skipping insertion in model container [2023-12-24 19:25:44,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:25:42" (2/3) ... [2023-12-24 19:25:44,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd31a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:25:44, skipping insertion in model container [2023-12-24 19:25:44,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:25:44" (3/3) ... [2023-12-24 19:25:44,166 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-26.i [2023-12-24 19:25:44,178 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 19:25:44,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 19:25:44,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 19:25:44,232 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=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ca5b75d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 19:25:44,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 19:25:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-24 19:25:44,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:44,247 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:44,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:44,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:44,254 INFO L85 PathProgramCache]: Analyzing trace with hash -483601842, now seen corresponding path program 1 times [2023-12-24 19:25:44,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:44,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427443643] [2023-12-24 19:25:44,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:44,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:44,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:44,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:44,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 19:25:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:44,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 19:25:44,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-24 19:25:44,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:44,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:44,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427443643] [2023-12-24 19:25:44,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427443643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:44,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:44,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 19:25:44,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888087662] [2023-12-24 19:25:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:44,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 19:25:44,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:44,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 19:25:44,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 19:25:44,712 INFO L87 Difference]: Start difference. First operand has 86 states, 74 states have (on average 1.472972972972973) internal successors, (109), 75 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-24 19:25:44,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:44,996 INFO L93 Difference]: Finished difference Result 169 states and 261 transitions. [2023-12-24 19:25:44,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 19:25:45,000 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-24 19:25:45,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:45,004 INFO L225 Difference]: With dead ends: 169 [2023-12-24 19:25:45,005 INFO L226 Difference]: Without dead ends: 84 [2023-12-24 19:25:45,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 19:25:45,010 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:45,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 19:25:45,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-24 19:25:45,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-24 19:25:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 73 states have internal predecessors, (104), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2023-12-24 19:25:45,042 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 122 transitions. Word has length 84 [2023-12-24 19:25:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:45,042 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 122 transitions. [2023-12-24 19:25:45,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-24 19:25:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2023-12-24 19:25:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-24 19:25:45,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:45,045 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:45,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:45,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:45,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:45,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1312447424, now seen corresponding path program 1 times [2023-12-24 19:25:45,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:45,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4370427] [2023-12-24 19:25:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:45,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:45,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:45,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:45,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 19:25:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:45,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:45,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-24 19:25:45,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:45,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:45,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4370427] [2023-12-24 19:25:45,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4370427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:45,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:45,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 19:25:45,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607398609] [2023-12-24 19:25:45,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:45,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 19:25:45,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:45,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 19:25:45,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 19:25:45,556 INFO L87 Difference]: Start difference. First operand 84 states and 122 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-24 19:25:45,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:45,844 INFO L93 Difference]: Finished difference Result 173 states and 252 transitions. [2023-12-24 19:25:45,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 19:25:45,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-24 19:25:45,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:45,846 INFO L225 Difference]: With dead ends: 173 [2023-12-24 19:25:45,846 INFO L226 Difference]: Without dead ends: 90 [2023-12-24 19:25:45,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 19:25:45,847 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 10 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:45,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 19:25:45,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-24 19:25:45,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2023-12-24 19:25:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 75 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-12-24 19:25:45,855 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 84 [2023-12-24 19:25:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:45,855 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-12-24 19:25:45,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-24 19:25:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-12-24 19:25:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-24 19:25:45,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:45,857 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:45,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:46,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:46,058 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:46,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1074062082, now seen corresponding path program 1 times [2023-12-24 19:25:46,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:46,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360846091] [2023-12-24 19:25:46,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:46,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:46,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:46,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:46,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 19:25:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:46,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:46,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:46,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 19:25:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:46,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:46,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:46,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360846091] [2023-12-24 19:25:46,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360846091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:46,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:46,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:25:46,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790860523] [2023-12-24 19:25:46,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:46,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 19:25:46,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:46,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 19:25:46,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:46,409 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:46,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:46,689 INFO L93 Difference]: Finished difference Result 171 states and 247 transitions. [2023-12-24 19:25:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 19:25:46,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-12-24 19:25:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:46,693 INFO L225 Difference]: With dead ends: 171 [2023-12-24 19:25:46,693 INFO L226 Difference]: Without dead ends: 86 [2023-12-24 19:25:46,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:46,694 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:46,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 229 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 19:25:46,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-24 19:25:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-24 19:25:46,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 123 transitions. [2023-12-24 19:25:46,703 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 123 transitions. Word has length 84 [2023-12-24 19:25:46,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:46,704 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 123 transitions. [2023-12-24 19:25:46,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 123 transitions. [2023-12-24 19:25:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-24 19:25:46,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:46,706 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:46,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:46,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:46,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:46,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:46,907 INFO L85 PathProgramCache]: Analyzing trace with hash -614881660, now seen corresponding path program 1 times [2023-12-24 19:25:46,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:46,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75610080] [2023-12-24 19:25:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:46,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:46,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:46,909 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:46,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 19:25:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:47,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 19:25:47,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:47,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:47,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:47,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75610080] [2023-12-24 19:25:47,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75610080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:47,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:47,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 19:25:47,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936512219] [2023-12-24 19:25:47,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:47,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 19:25:47,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:47,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 19:25:47,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 19:25:47,231 INFO L87 Difference]: Start difference. First operand 86 states and 123 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:47,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:47,633 INFO L93 Difference]: Finished difference Result 180 states and 257 transitions. [2023-12-24 19:25:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 19:25:47,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-12-24 19:25:47,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:47,635 INFO L225 Difference]: With dead ends: 180 [2023-12-24 19:25:47,635 INFO L226 Difference]: Without dead ends: 95 [2023-12-24 19:25:47,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 19:25:47,636 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 10 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:47,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 444 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 19:25:47,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-24 19:25:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2023-12-24 19:25:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:47,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2023-12-24 19:25:47,642 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 84 [2023-12-24 19:25:47,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:47,642 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2023-12-24 19:25:47,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2023-12-24 19:25:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-24 19:25:47,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:47,644 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:47,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:47,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:47,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:47,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:47,854 INFO L85 PathProgramCache]: Analyzing trace with hash -614822078, now seen corresponding path program 1 times [2023-12-24 19:25:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:47,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30629389] [2023-12-24 19:25:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:47,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:47,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:47,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:47,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 19:25:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:48,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 19:25:48,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:48,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-12-24 19:25:48,270 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-24 19:25:48,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:48,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:48,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30629389] [2023-12-24 19:25:48,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30629389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:48,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:48,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 19:25:48,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677952914] [2023-12-24 19:25:48,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:48,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 19:25:48,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:48,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 19:25:48,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 19:25:48,272 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-24 19:25:49,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:49,158 INFO L93 Difference]: Finished difference Result 183 states and 259 transitions. [2023-12-24 19:25:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 19:25:49,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-12-24 19:25:49,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:49,159 INFO L225 Difference]: With dead ends: 183 [2023-12-24 19:25:49,159 INFO L226 Difference]: Without dead ends: 94 [2023-12-24 19:25:49,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 19:25:49,160 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 129 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:49,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 346 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-24 19:25:49,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-24 19:25:49,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2023-12-24 19:25:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 77 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:49,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2023-12-24 19:25:49,165 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 84 [2023-12-24 19:25:49,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:49,166 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2023-12-24 19:25:49,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-24 19:25:49,166 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2023-12-24 19:25:49,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-24 19:25:49,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:49,167 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:49,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:49,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:49,368 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:49,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1443067654, now seen corresponding path program 1 times [2023-12-24 19:25:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:49,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40565157] [2023-12-24 19:25:49,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:49,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:49,370 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:49,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 19:25:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:49,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 19:25:49,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:49,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 40 [2023-12-24 19:25:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-24 19:25:49,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 19:25:50,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 22 [2023-12-24 19:25:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-24 19:25:50,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:50,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40565157] [2023-12-24 19:25:50,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40565157] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 19:25:50,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 19:25:50,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-12-24 19:25:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315578348] [2023-12-24 19:25:50,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 19:25:50,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-24 19:25:50,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:50,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-24 19:25:50,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 19:25:50,045 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-24 19:25:51,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:51,570 INFO L93 Difference]: Finished difference Result 188 states and 262 transitions. [2023-12-24 19:25:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-24 19:25:51,570 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 86 [2023-12-24 19:25:51,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:51,571 INFO L225 Difference]: With dead ends: 188 [2023-12-24 19:25:51,571 INFO L226 Difference]: Without dead ends: 90 [2023-12-24 19:25:51,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-12-24 19:25:51,572 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 129 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:51,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 565 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-24 19:25:51,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-24 19:25:51,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2023-12-24 19:25:51,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2023-12-24 19:25:51,577 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 86 [2023-12-24 19:25:51,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:51,578 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2023-12-24 19:25:51,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-24 19:25:51,578 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2023-12-24 19:25:51,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-24 19:25:51,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:51,579 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:51,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:51,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:51,788 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:51,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:51,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1519968452, now seen corresponding path program 1 times [2023-12-24 19:25:51,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:51,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154472942] [2023-12-24 19:25:51,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:51,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:51,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:51,790 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:51,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-24 19:25:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:52,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:52,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:52,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-12-24 19:25:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:52,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:52,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:52,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154472942] [2023-12-24 19:25:52,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154472942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:52,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:52,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:25:52,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639650027] [2023-12-24 19:25:52,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:52,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 19:25:52,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:52,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 19:25:52,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:52,120 INFO L87 Difference]: Start difference. First operand 88 states and 122 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:52,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:52,325 INFO L93 Difference]: Finished difference Result 173 states and 241 transitions. [2023-12-24 19:25:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 19:25:52,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2023-12-24 19:25:52,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:52,326 INFO L225 Difference]: With dead ends: 173 [2023-12-24 19:25:52,326 INFO L226 Difference]: Without dead ends: 86 [2023-12-24 19:25:52,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:52,327 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:52,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 19:25:52,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-24 19:25:52,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-24 19:25:52,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:52,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2023-12-24 19:25:52,331 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 86 [2023-12-24 19:25:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:52,332 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2023-12-24 19:25:52,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2023-12-24 19:25:52,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-24 19:25:52,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:52,333 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:52,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:52,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:52,542 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:52,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:52,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1689389851, now seen corresponding path program 1 times [2023-12-24 19:25:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397983842] [2023-12-24 19:25:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:52,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:52,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:52,545 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:52,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-24 19:25:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:52,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:52,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:52,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 19:25:52,826 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:52,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:52,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:52,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397983842] [2023-12-24 19:25:52,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397983842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:52,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:52,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:25:52,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669341115] [2023-12-24 19:25:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:52,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 19:25:52,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 19:25:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:52,831 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:53,227 INFO L93 Difference]: Finished difference Result 171 states and 237 transitions. [2023-12-24 19:25:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 19:25:53,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-24 19:25:53,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:53,228 INFO L225 Difference]: With dead ends: 171 [2023-12-24 19:25:53,228 INFO L226 Difference]: Without dead ends: 86 [2023-12-24 19:25:53,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:53,229 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:53,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 204 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 19:25:53,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-24 19:25:53,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-24 19:25:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 75 states have internal predecessors, (100), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-12-24 19:25:53,233 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 91 [2023-12-24 19:25:53,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:53,234 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-12-24 19:25:53,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:53,234 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-12-24 19:25:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-24 19:25:53,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:53,235 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:53,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-24 19:25:53,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:53,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:53,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:53,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1823403357, now seen corresponding path program 1 times [2023-12-24 19:25:53,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:53,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163112172] [2023-12-24 19:25:53,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:53,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:53,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:53,450 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:53,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-24 19:25:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:53,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:53,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:53,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 19:25:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:53,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:53,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:53,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163112172] [2023-12-24 19:25:53,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163112172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:53,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:53,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:25:53,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685690622] [2023-12-24 19:25:53,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:53,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 19:25:53,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:53,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 19:25:53,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:53,851 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:54,139 INFO L93 Difference]: Finished difference Result 171 states and 235 transitions. [2023-12-24 19:25:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 19:25:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-24 19:25:54,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:54,140 INFO L225 Difference]: With dead ends: 171 [2023-12-24 19:25:54,140 INFO L226 Difference]: Without dead ends: 86 [2023-12-24 19:25:54,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:54,141 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 9 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:54,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 205 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 19:25:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-24 19:25:54,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-24 19:25:54,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.32) internal successors, (99), 75 states have internal predecessors, (99), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:54,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 117 transitions. [2023-12-24 19:25:54,145 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 117 transitions. Word has length 91 [2023-12-24 19:25:54,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:54,146 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 117 transitions. [2023-12-24 19:25:54,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 117 transitions. [2023-12-24 19:25:54,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-24 19:25:54,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:54,147 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:54,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:54,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:54,364 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:54,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:54,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1604548639, now seen corresponding path program 1 times [2023-12-24 19:25:54,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:54,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601267940] [2023-12-24 19:25:54,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:54,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:54,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:54,366 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:54,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-24 19:25:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:54,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:54,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:54,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 19:25:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:54,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:54,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601267940] [2023-12-24 19:25:54,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601267940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:54,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:54,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:25:54,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283904955] [2023-12-24 19:25:54,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:54,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 19:25:54,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:54,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 19:25:54,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:54,769 INFO L87 Difference]: Start difference. First operand 86 states and 117 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:54,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:54,939 INFO L93 Difference]: Finished difference Result 172 states and 234 transitions. [2023-12-24 19:25:54,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 19:25:54,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-24 19:25:54,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:54,940 INFO L225 Difference]: With dead ends: 172 [2023-12-24 19:25:54,940 INFO L226 Difference]: Without dead ends: 87 [2023-12-24 19:25:54,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:54,941 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 2 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:54,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 210 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 19:25:54,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-24 19:25:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2023-12-24 19:25:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 75 states have internal predecessors, (98), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 116 transitions. [2023-12-24 19:25:54,945 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 116 transitions. Word has length 91 [2023-12-24 19:25:54,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:54,945 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 116 transitions. [2023-12-24 19:25:54,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 116 transitions. [2023-12-24 19:25:54,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-24 19:25:54,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:54,946 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:54,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:55,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:55,155 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:55,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:55,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1872770207, now seen corresponding path program 1 times [2023-12-24 19:25:55,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:55,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008189695] [2023-12-24 19:25:55,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:55,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:55,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:55,157 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:55,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-24 19:25:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:55,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:55,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:55,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2023-12-24 19:25:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:55,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:55,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:55,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008189695] [2023-12-24 19:25:55,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008189695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:55,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:55,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:25:55,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002407447] [2023-12-24 19:25:55,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:55,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 19:25:55,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:55,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 19:25:55,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:55,513 INFO L87 Difference]: Start difference. First operand 86 states and 116 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:55,636 INFO L93 Difference]: Finished difference Result 169 states and 228 transitions. [2023-12-24 19:25:55,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 19:25:55,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-12-24 19:25:55,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:55,637 INFO L225 Difference]: With dead ends: 169 [2023-12-24 19:25:55,637 INFO L226 Difference]: Without dead ends: 84 [2023-12-24 19:25:55,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:55,638 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 36 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:55,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 170 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 19:25:55,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-24 19:25:55,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-24 19:25:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 73 states have internal predecessors, (94), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 112 transitions. [2023-12-24 19:25:55,641 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 112 transitions. Word has length 91 [2023-12-24 19:25:55,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:55,641 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 112 transitions. [2023-12-24 19:25:55,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:55,641 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 112 transitions. [2023-12-24 19:25:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-24 19:25:55,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:55,642 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:55,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-24 19:25:55,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:55,851 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:55,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:55,852 INFO L85 PathProgramCache]: Analyzing trace with hash 631138596, now seen corresponding path program 1 times [2023-12-24 19:25:55,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:55,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221906608] [2023-12-24 19:25:55,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:55,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:55,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:55,853 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:55,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-24 19:25:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:56,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:56,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:56,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 19:25:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:56,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:56,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221906608] [2023-12-24 19:25:56,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221906608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:56,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:56,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:25:56,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611164907] [2023-12-24 19:25:56,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:56,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 19:25:56,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:56,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 19:25:56,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:56,237 INFO L87 Difference]: Start difference. First operand 84 states and 112 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:56,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:56,508 INFO L93 Difference]: Finished difference Result 167 states and 223 transitions. [2023-12-24 19:25:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 19:25:56,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-12-24 19:25:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:56,509 INFO L225 Difference]: With dead ends: 167 [2023-12-24 19:25:56,509 INFO L226 Difference]: Without dead ends: 84 [2023-12-24 19:25:56,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:56,510 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 34 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:56,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 169 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 19:25:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-24 19:25:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-24 19:25:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2023-12-24 19:25:56,513 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 96 [2023-12-24 19:25:56,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:56,513 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2023-12-24 19:25:56,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2023-12-24 19:25:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-24 19:25:56,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:56,514 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:56,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:56,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:56,715 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:56,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:56,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1363006110, now seen corresponding path program 1 times [2023-12-24 19:25:56,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:56,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550268561] [2023-12-24 19:25:56,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:56,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:56,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:56,717 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:56,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-24 19:25:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 19:25:57,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 19:25:57,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 19:25:57,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-24 19:25:57,115 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-24 19:25:57,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 19:25:57,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 19:25:57,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550268561] [2023-12-24 19:25:57,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550268561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 19:25:57,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 19:25:57,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 19:25:57,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233056588] [2023-12-24 19:25:57,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 19:25:57,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 19:25:57,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 19:25:57,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 19:25:57,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:57,117 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:57,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 19:25:57,342 INFO L93 Difference]: Finished difference Result 187 states and 248 transitions. [2023-12-24 19:25:57,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 19:25:57,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-12-24 19:25:57,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 19:25:57,343 INFO L225 Difference]: With dead ends: 187 [2023-12-24 19:25:57,343 INFO L226 Difference]: Without dead ends: 104 [2023-12-24 19:25:57,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 19:25:57,344 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 24 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 19:25:57,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 199 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 19:25:57,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-24 19:25:57,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 84. [2023-12-24 19:25:57,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 73 states have internal predecessors, (92), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-24 19:25:57,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 110 transitions. [2023-12-24 19:25:57,346 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 110 transitions. Word has length 96 [2023-12-24 19:25:57,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 19:25:57,347 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 110 transitions. [2023-12-24 19:25:57,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-24 19:25:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2023-12-24 19:25:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-24 19:25:57,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 19:25:57,347 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:25:57,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-24 19:25:57,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:57,548 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 19:25:57,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 19:25:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1920843936, now seen corresponding path program 1 times [2023-12-24 19:25:57,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 19:25:57,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016902891] [2023-12-24 19:25:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 19:25:57,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:25:57,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 19:25:57,550 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 19:25:57,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process Received shutdown request... [2023-12-24 19:40:31,950 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 19:40:31,951 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 19:40:32,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-24 19:40:33,160 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forcibly destroying the process [2023-12-24 19:40:33,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-24 19:40:33,190 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 19:40:33,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 19:40:33,190 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 97 with TraceHistMax 9,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [2016902891] and IpTcStrategyModuleCvc4 [1450254045]. [2023-12-24 19:40:33,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 137 [2023-12-24 19:40:33,206 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 19:40:33,208 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 19:40:33,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 07:40:33 BoogieIcfgContainer [2023-12-24 19:40:33,210 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 19:40:33,210 INFO L158 Benchmark]: Toolchain (without parser) took 891021.31ms. Allocated memory is still 311.4MB. Free memory was 256.1MB in the beginning and 149.5MB in the end (delta: 106.6MB). Peak memory consumption was 107.7MB. Max. memory is 8.0GB. [2023-12-24 19:40:33,210 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 211.8MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 19:40:33,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.68ms. Allocated memory is still 311.4MB. Free memory was 256.1MB in the beginning and 239.9MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-24 19:40:33,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.25ms. Allocated memory is still 311.4MB. Free memory was 239.9MB in the beginning and 236.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 19:40:33,211 INFO L158 Benchmark]: Boogie Preprocessor took 81.46ms. Allocated memory is still 311.4MB. Free memory was 236.7MB in the beginning and 232.0MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-24 19:40:33,211 INFO L158 Benchmark]: RCFGBuilder took 1540.62ms. Allocated memory is still 311.4MB. Free memory was 232.0MB in the beginning and 194.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-24 19:40:33,212 INFO L158 Benchmark]: TraceAbstraction took 889048.24ms. Allocated memory is still 311.4MB. Free memory was 193.7MB in the beginning and 149.5MB in the end (delta: 44.3MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. [2023-12-24 19:40:33,215 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 211.8MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 279.68ms. Allocated memory is still 311.4MB. Free memory was 256.1MB in the beginning and 239.9MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.25ms. Allocated memory is still 311.4MB. Free memory was 239.9MB in the beginning and 236.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 81.46ms. Allocated memory is still 311.4MB. Free memory was 236.7MB in the beginning and 232.0MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1540.62ms. Allocated memory is still 311.4MB. Free memory was 232.0MB in the beginning and 194.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * TraceAbstraction took 889048.24ms. Allocated memory is still 311.4MB. Free memory was 193.7MB in the beginning and 149.5MB in the end (delta: 44.3MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 97 with TraceHistMax 9,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [2016902891] and IpTcStrategyModuleCvc4 [1450254045]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 889.0s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 404 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 396 mSDsluCounter, 3423 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2015 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 683 IncrementalHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 1408 mSDtfsCounter, 683 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1238 GetRequests, 1193 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=4, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 38 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1148 NumberOfCodeBlocks, 1148 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1220 ConstructedInterpolants, 8 QuantifiedInterpolants, 1736 SizeOfPredicates, 59 NumberOfNonLiveVariables, 2878 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 1990/2016 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown