/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/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:31:01,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:31:01,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:31:01,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:31:01,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:31:01,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:31:01,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:31:01,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:31:01,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:31:01,751 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:31:01,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:31:01,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:31:01,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:31:01,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:31:01,753 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:31:01,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:31:01,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:31:01,753 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:31:01,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:31:01,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:31:01,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:31:01,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:31:01,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:31:01,755 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:31:01,755 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:31:01,755 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:31:01,755 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:31:01,756 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:31:01,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:31:01,756 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:31:01,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:31:01,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:31:01,757 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:31:01,757 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:31:01,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:31:01,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:31:01,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:31:01,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:31:01,758 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:31:01,758 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:31:01,758 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:31:01,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:31:01,759 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:31:01,759 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:31:01,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:31:01,759 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:31:01,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:31:01,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:31:01,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:31:01,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:31:01,966 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:31:01,967 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:31:01,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-25 09:31:02,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:31:03,171 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:31:03,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-25 09:31:03,198 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4965afc8a/66bbc65dc935409d95338d1da9abb438/FLAGcdbff83da [2023-12-25 09:31:03,210 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4965afc8a/66bbc65dc935409d95338d1da9abb438 [2023-12-25 09:31:03,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:31:03,213 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:31:03,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:31:03,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:31:03,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:31:03,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:31:03" (1/1) ... [2023-12-25 09:31:03,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6df273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:03, skipping insertion in model container [2023-12-25 09:31:03,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:31:03" (1/1) ... [2023-12-25 09:31:03,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:31:03,585 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12460,12473] [2023-12-25 09:31:03,621 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19746,19759] [2023-12-25 09:31:03,633 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22098,22111] [2023-12-25 09:31:03,637 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23218,23231] [2023-12-25 09:31:03,653 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26768,26781] [2023-12-25 09:31:03,657 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27891,27904] [2023-12-25 09:31:03,670 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30206,30219] [2023-12-25 09:31:03,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:31:03,996 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:31:04,041 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12460,12473] [2023-12-25 09:31:04,052 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19746,19759] [2023-12-25 09:31:04,057 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22098,22111] [2023-12-25 09:31:04,060 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23218,23231] [2023-12-25 09:31:04,069 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26768,26781] [2023-12-25 09:31:04,071 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27891,27904] [2023-12-25 09:31:04,076 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30206,30219] [2023-12-25 09:31:04,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:31:04,273 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:31:04,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04 WrapperNode [2023-12-25 09:31:04,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:31:04,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:31:04,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:31:04,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:31:04,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,441 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7658 [2023-12-25 09:31:04,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:31:04,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:31:04,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:31:04,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:31:04,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,500 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 09:31:04,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:31:04,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:31:04,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:31:04,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:31:04,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (1/1) ... [2023-12-25 09:31:04,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:31:04,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:31:04,634 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) [2023-12-25 09:31:04,642 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 [2023-12-25 09:31:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:31:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:31:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:31:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:31:04,935 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:31:04,937 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:31:07,765 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:31:07,807 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:31:07,808 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:31:07,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:31:07 BoogieIcfgContainer [2023-12-25 09:31:07,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:31:07,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:31:07,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:31:07,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:31:07,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:31:03" (1/3) ... [2023-12-25 09:31:07,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332195ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:31:07, skipping insertion in model container [2023-12-25 09:31:07,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:31:04" (2/3) ... [2023-12-25 09:31:07,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332195ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:31:07, skipping insertion in model container [2023-12-25 09:31:07,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:31:07" (3/3) ... [2023-12-25 09:31:07,817 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-25 09:31:07,829 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:31:07,829 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-25 09:31:07,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:31:07,891 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;@6a1a3953, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:31:07,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-25 09:31:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 1104 states, 1096 states have (on average 1.8868613138686132) internal successors, (2068), 1103 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 09:31:07,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:07,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:07,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:07,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1184813438, now seen corresponding path program 1 times [2023-12-25 09:31:07,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:07,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586670160] [2023-12-25 09:31:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:07,939 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 [2023-12-25 09:31:07,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:07,941 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) [2023-12-25 09:31:07,959 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 [2023-12-25 09:31:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:08,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:31:08,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:08,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:08,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:08,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:08,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586670160] [2023-12-25 09:31:08,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586670160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:08,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:08,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:31:08,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149072643] [2023-12-25 09:31:08,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:08,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:31:08,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:08,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:31:08,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:31:08,721 INFO L87 Difference]: Start difference. First operand has 1104 states, 1096 states have (on average 1.8868613138686132) internal successors, (2068), 1103 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:09,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:09,550 INFO L93 Difference]: Finished difference Result 1795 states and 3281 transitions. [2023-12-25 09:31:09,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:31:09,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-25 09:31:09,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:09,563 INFO L225 Difference]: With dead ends: 1795 [2023-12-25 09:31:09,563 INFO L226 Difference]: Without dead ends: 993 [2023-12-25 09:31:09,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:09,570 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 5033 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:09,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 1243 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:31:09,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2023-12-25 09:31:09,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 985. [2023-12-25 09:31:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 978 states have (on average 1.343558282208589) internal successors, (1314), 984 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:09,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1314 transitions. [2023-12-25 09:31:09,636 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1314 transitions. Word has length 63 [2023-12-25 09:31:09,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:09,637 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1314 transitions. [2023-12-25 09:31:09,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:09,637 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1314 transitions. [2023-12-25 09:31:09,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 09:31:09,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:09,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:09,645 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 (2)] Ended with exit code 0 [2023-12-25 09:31:09,842 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 [2023-12-25 09:31:09,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:09,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:09,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1152487412, now seen corresponding path program 1 times [2023-12-25 09:31:09,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:09,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702727506] [2023-12-25 09:31:09,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:09,845 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 [2023-12-25 09:31:09,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:09,846 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) [2023-12-25 09:31:09,877 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 [2023-12-25 09:31:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:10,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:31:10,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:10,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:10,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:10,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702727506] [2023-12-25 09:31:10,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702727506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:10,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:10,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:31:10,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239514916] [2023-12-25 09:31:10,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:10,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:31:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:10,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:31:10,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:31:10,316 INFO L87 Difference]: Start difference. First operand 985 states and 1314 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:10,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:10,809 INFO L93 Difference]: Finished difference Result 1839 states and 2540 transitions. [2023-12-25 09:31:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:31:10,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-25 09:31:10,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:10,812 INFO L225 Difference]: With dead ends: 1839 [2023-12-25 09:31:10,812 INFO L226 Difference]: Without dead ends: 1082 [2023-12-25 09:31:10,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:10,814 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 2949 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2949 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:10,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2949 Valid, 691 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:31:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-12-25 09:31:10,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1074. [2023-12-25 09:31:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 1067 states have (on average 1.3983130271790065) internal successors, (1492), 1073 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:10,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1492 transitions. [2023-12-25 09:31:10,832 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1492 transitions. Word has length 64 [2023-12-25 09:31:10,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:10,832 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1492 transitions. [2023-12-25 09:31:10,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:10,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1492 transitions. [2023-12-25 09:31:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 09:31:10,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:10,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:10,852 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 (3)] Ended with exit code 0 [2023-12-25 09:31:11,044 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 [2023-12-25 09:31:11,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:11,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash -253934231, now seen corresponding path program 1 times [2023-12-25 09:31:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:11,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149069310] [2023-12-25 09:31:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:11,046 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 [2023-12-25 09:31:11,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:11,047 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) [2023-12-25 09:31:11,050 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 [2023-12-25 09:31:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:11,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:31:11,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:11,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:11,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:11,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149069310] [2023-12-25 09:31:11,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149069310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:11,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:11,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:31:11,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707943719] [2023-12-25 09:31:11,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:11,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:31:11,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:11,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:31:11,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:11,409 INFO L87 Difference]: Start difference. First operand 1074 states and 1492 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:11,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:11,662 INFO L93 Difference]: Finished difference Result 3067 states and 4433 transitions. [2023-12-25 09:31:11,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:31:11,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-25 09:31:11,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:11,669 INFO L225 Difference]: With dead ends: 3067 [2023-12-25 09:31:11,669 INFO L226 Difference]: Without dead ends: 2319 [2023-12-25 09:31:11,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:11,671 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 3151 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:11,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 1730 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:31:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2023-12-25 09:31:11,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2305. [2023-12-25 09:31:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2298 states have (on average 1.434290687554395) internal successors, (3296), 2304 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:11,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3296 transitions. [2023-12-25 09:31:11,708 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3296 transitions. Word has length 65 [2023-12-25 09:31:11,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:11,708 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 3296 transitions. [2023-12-25 09:31:11,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3296 transitions. [2023-12-25 09:31:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 09:31:11,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:11,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:11,716 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 [2023-12-25 09:31:11,914 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 [2023-12-25 09:31:11,916 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:11,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:11,916 INFO L85 PathProgramCache]: Analyzing trace with hash 647200403, now seen corresponding path program 1 times [2023-12-25 09:31:11,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:11,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842661431] [2023-12-25 09:31:11,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:11,917 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 [2023-12-25 09:31:11,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:11,918 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) [2023-12-25 09:31:11,919 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 [2023-12-25 09:31:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:12,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:31:12,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:12,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:12,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:12,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:12,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842661431] [2023-12-25 09:31:12,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842661431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:12,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:12,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:31:12,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013977605] [2023-12-25 09:31:12,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:12,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:31:12,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:12,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:31:12,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:31:12,386 INFO L87 Difference]: Start difference. First operand 2305 states and 3296 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:12,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:12,899 INFO L93 Difference]: Finished difference Result 5440 states and 7914 transitions. [2023-12-25 09:31:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:31:12,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-25 09:31:12,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:12,908 INFO L225 Difference]: With dead ends: 5440 [2023-12-25 09:31:12,908 INFO L226 Difference]: Without dead ends: 3479 [2023-12-25 09:31:12,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:12,911 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1584 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:12,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 580 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:31:12,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2023-12-25 09:31:12,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3471. [2023-12-25 09:31:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3471 states, 3464 states have (on average 1.4463048498845266) internal successors, (5010), 3470 states have internal predecessors, (5010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:12,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 5010 transitions. [2023-12-25 09:31:12,967 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 5010 transitions. Word has length 65 [2023-12-25 09:31:12,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:12,967 INFO L495 AbstractCegarLoop]: Abstraction has 3471 states and 5010 transitions. [2023-12-25 09:31:12,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:12,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 5010 transitions. [2023-12-25 09:31:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 09:31:12,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:12,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:12,973 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 (5)] Ended with exit code 0 [2023-12-25 09:31:13,173 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 [2023-12-25 09:31:13,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:13,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:13,174 INFO L85 PathProgramCache]: Analyzing trace with hash -933335184, now seen corresponding path program 1 times [2023-12-25 09:31:13,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:13,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130459589] [2023-12-25 09:31:13,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:13,175 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 [2023-12-25 09:31:13,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:13,176 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) [2023-12-25 09:31:13,176 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 [2023-12-25 09:31:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:13,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:31:13,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:13,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:13,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:13,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130459589] [2023-12-25 09:31:13,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130459589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:13,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:13,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:31:13,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994331088] [2023-12-25 09:31:13,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:13,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:31:13,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:13,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:31:13,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:31:13,616 INFO L87 Difference]: Start difference. First operand 3471 states and 5010 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:14,040 INFO L93 Difference]: Finished difference Result 9098 states and 13337 transitions. [2023-12-25 09:31:14,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:31:14,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-25 09:31:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:14,054 INFO L225 Difference]: With dead ends: 9098 [2023-12-25 09:31:14,054 INFO L226 Difference]: Without dead ends: 5883 [2023-12-25 09:31:14,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:14,059 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1699 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:14,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 567 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:31:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2023-12-25 09:31:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5875. [2023-12-25 09:31:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5875 states, 5868 states have (on average 1.4619972733469666) internal successors, (8579), 5874 states have internal predecessors, (8579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:14,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 8579 transitions. [2023-12-25 09:31:14,129 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 8579 transitions. Word has length 65 [2023-12-25 09:31:14,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:14,129 INFO L495 AbstractCegarLoop]: Abstraction has 5875 states and 8579 transitions. [2023-12-25 09:31:14,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 8579 transitions. [2023-12-25 09:31:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:31:14,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:14,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:14,138 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 [2023-12-25 09:31:14,336 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 [2023-12-25 09:31:14,336 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:14,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash -911996321, now seen corresponding path program 1 times [2023-12-25 09:31:14,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:14,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477996863] [2023-12-25 09:31:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:14,337 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 [2023-12-25 09:31:14,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:14,338 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) [2023-12-25 09:31:14,352 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 [2023-12-25 09:31:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:14,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:31:14,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:14,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:14,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:14,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477996863] [2023-12-25 09:31:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477996863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:14,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:14,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:31:14,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949201263] [2023-12-25 09:31:14,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:14,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:31:14,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:14,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:31:14,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:14,713 INFO L87 Difference]: Start difference. First operand 5875 states and 8579 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:15,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:15,254 INFO L93 Difference]: Finished difference Result 24716 states and 36460 transitions. [2023-12-25 09:31:15,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:31:15,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-25 09:31:15,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:15,295 INFO L225 Difference]: With dead ends: 24716 [2023-12-25 09:31:15,295 INFO L226 Difference]: Without dead ends: 19349 [2023-12-25 09:31:15,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:31:15,307 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 3241 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3241 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:15,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3241 Valid, 1071 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:31:15,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19349 states. [2023-12-25 09:31:15,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19349 to 5855. [2023-12-25 09:31:15,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5855 states, 5848 states have (on average 1.4526333789329686) internal successors, (8495), 5854 states have internal predecessors, (8495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 8495 transitions. [2023-12-25 09:31:15,453 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 8495 transitions. Word has length 66 [2023-12-25 09:31:15,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:15,453 INFO L495 AbstractCegarLoop]: Abstraction has 5855 states and 8495 transitions. [2023-12-25 09:31:15,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 8495 transitions. [2023-12-25 09:31:15,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:31:15,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:15,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:15,460 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 [2023-12-25 09:31:15,658 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 [2023-12-25 09:31:15,659 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:15,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1315981489, now seen corresponding path program 1 times [2023-12-25 09:31:15,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:15,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473937753] [2023-12-25 09:31:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:15,660 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 [2023-12-25 09:31:15,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:15,661 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) [2023-12-25 09:31:15,680 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 [2023-12-25 09:31:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:15,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:15,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:15,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:15,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:15,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473937753] [2023-12-25 09:31:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473937753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:15,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:15,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478822436] [2023-12-25 09:31:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:15,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:15,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:15,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:15,919 INFO L87 Difference]: Start difference. First operand 5855 states and 8495 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:15,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:15,976 INFO L93 Difference]: Finished difference Result 9918 states and 14470 transitions. [2023-12-25 09:31:15,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:15,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-25 09:31:15,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:15,986 INFO L225 Difference]: With dead ends: 9918 [2023-12-25 09:31:15,986 INFO L226 Difference]: Without dead ends: 7039 [2023-12-25 09:31:15,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:15,991 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 379 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:15,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1157 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:15,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7039 states. [2023-12-25 09:31:16,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7039 to 6972. [2023-12-25 09:31:16,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6972 states, 6965 states have (on average 1.436468054558507) internal successors, (10005), 6971 states have internal predecessors, (10005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:16,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6972 states to 6972 states and 10005 transitions. [2023-12-25 09:31:16,074 INFO L78 Accepts]: Start accepts. Automaton has 6972 states and 10005 transitions. Word has length 66 [2023-12-25 09:31:16,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:16,075 INFO L495 AbstractCegarLoop]: Abstraction has 6972 states and 10005 transitions. [2023-12-25 09:31:16,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 6972 states and 10005 transitions. [2023-12-25 09:31:16,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:31:16,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:16,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:16,083 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 [2023-12-25 09:31:16,283 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 [2023-12-25 09:31:16,283 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:16,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:16,284 INFO L85 PathProgramCache]: Analyzing trace with hash -757718927, now seen corresponding path program 1 times [2023-12-25 09:31:16,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:16,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605097096] [2023-12-25 09:31:16,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:16,284 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 [2023-12-25 09:31:16,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:16,285 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) [2023-12-25 09:31:16,286 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 [2023-12-25 09:31:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:16,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:31:16,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:16,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:16,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:16,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605097096] [2023-12-25 09:31:16,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605097096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:16,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:16,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:31:16,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779187563] [2023-12-25 09:31:16,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:16,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:31:16,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:16,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:31:16,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:16,660 INFO L87 Difference]: Start difference. First operand 6972 states and 10005 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:17,226 INFO L93 Difference]: Finished difference Result 40258 states and 58599 transitions. [2023-12-25 09:31:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:31:17,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-25 09:31:17,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:17,274 INFO L225 Difference]: With dead ends: 40258 [2023-12-25 09:31:17,274 INFO L226 Difference]: Without dead ends: 34250 [2023-12-25 09:31:17,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:31:17,290 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 2282 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:17,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 1153 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:31:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34250 states. [2023-12-25 09:31:17,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34250 to 6968. [2023-12-25 09:31:17,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6968 states, 6961 states have (on average 1.4183306996121248) internal successors, (9873), 6967 states have internal predecessors, (9873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:17,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6968 states to 6968 states and 9873 transitions. [2023-12-25 09:31:17,482 INFO L78 Accepts]: Start accepts. Automaton has 6968 states and 9873 transitions. Word has length 66 [2023-12-25 09:31:17,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:17,482 INFO L495 AbstractCegarLoop]: Abstraction has 6968 states and 9873 transitions. [2023-12-25 09:31:17,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:17,482 INFO L276 IsEmpty]: Start isEmpty. Operand 6968 states and 9873 transitions. [2023-12-25 09:31:17,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:31:17,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:17,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:17,492 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 (9)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:17,691 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 [2023-12-25 09:31:17,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:17,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:17,692 INFO L85 PathProgramCache]: Analyzing trace with hash -408912616, now seen corresponding path program 1 times [2023-12-25 09:31:17,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:17,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840008929] [2023-12-25 09:31:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:17,692 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 [2023-12-25 09:31:17,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:17,693 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) [2023-12-25 09:31:17,695 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 [2023-12-25 09:31:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:17,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:17,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:17,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:17,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:17,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840008929] [2023-12-25 09:31:17,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840008929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:17,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:17,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:17,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092775161] [2023-12-25 09:31:17,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:17,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:17,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:17,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:17,973 INFO L87 Difference]: Start difference. First operand 6968 states and 9873 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:18,023 INFO L93 Difference]: Finished difference Result 16899 states and 24137 transitions. [2023-12-25 09:31:18,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:18,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-25 09:31:18,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:18,036 INFO L225 Difference]: With dead ends: 16899 [2023-12-25 09:31:18,037 INFO L226 Difference]: Without dead ends: 11455 [2023-12-25 09:31:18,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:18,044 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 459 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:18,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1378 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:18,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11455 states. [2023-12-25 09:31:18,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11455 to 11415. [2023-12-25 09:31:18,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11415 states, 11408 states have (on average 1.4158485273492285) internal successors, (16152), 11414 states have internal predecessors, (16152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:18,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11415 states to 11415 states and 16152 transitions. [2023-12-25 09:31:18,156 INFO L78 Accepts]: Start accepts. Automaton has 11415 states and 16152 transitions. Word has length 66 [2023-12-25 09:31:18,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:18,156 INFO L495 AbstractCegarLoop]: Abstraction has 11415 states and 16152 transitions. [2023-12-25 09:31:18,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 11415 states and 16152 transitions. [2023-12-25 09:31:18,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:31:18,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:18,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:18,165 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 [2023-12-25 09:31:18,365 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 [2023-12-25 09:31:18,365 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:18,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:18,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1380581678, now seen corresponding path program 1 times [2023-12-25 09:31:18,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:18,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127041002] [2023-12-25 09:31:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:18,369 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 [2023-12-25 09:31:18,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:18,370 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) [2023-12-25 09:31:18,370 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 (11)] Waiting until timeout for monitored process [2023-12-25 09:31:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:18,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:31:18,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:18,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:18,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127041002] [2023-12-25 09:31:18,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127041002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:18,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:18,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:31:18,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016207750] [2023-12-25 09:31:18,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:31:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:31:18,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:18,740 INFO L87 Difference]: Start difference. First operand 11415 states and 16152 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:19,292 INFO L93 Difference]: Finished difference Result 57974 states and 83018 transitions. [2023-12-25 09:31:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:31:19,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-25 09:31:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:19,404 INFO L225 Difference]: With dead ends: 57974 [2023-12-25 09:31:19,405 INFO L226 Difference]: Without dead ends: 48511 [2023-12-25 09:31:19,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:31:19,420 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 2098 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:19,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 1148 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:31:19,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48511 states. [2023-12-25 09:31:19,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48511 to 11596. [2023-12-25 09:31:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11596 states, 11589 states have (on average 1.3957200793856244) internal successors, (16175), 11595 states have internal predecessors, (16175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:19,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11596 states to 11596 states and 16175 transitions. [2023-12-25 09:31:19,788 INFO L78 Accepts]: Start accepts. Automaton has 11596 states and 16175 transitions. Word has length 66 [2023-12-25 09:31:19,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:19,788 INFO L495 AbstractCegarLoop]: Abstraction has 11596 states and 16175 transitions. [2023-12-25 09:31:19,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:19,788 INFO L276 IsEmpty]: Start isEmpty. Operand 11596 states and 16175 transitions. [2023-12-25 09:31:19,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-25 09:31:19,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:19,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:19,798 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 [2023-12-25 09:31:19,995 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 [2023-12-25 09:31:19,996 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:19,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1890382511, now seen corresponding path program 1 times [2023-12-25 09:31:19,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:19,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894871768] [2023-12-25 09:31:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:19,997 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 [2023-12-25 09:31:19,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:19,998 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) [2023-12-25 09:31:19,999 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 [2023-12-25 09:31:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:20,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:20,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:20,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:20,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:20,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894871768] [2023-12-25 09:31:20,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894871768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:20,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:20,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:20,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940553972] [2023-12-25 09:31:20,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:20,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:20,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:20,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:20,243 INFO L87 Difference]: Start difference. First operand 11596 states and 16175 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:20,303 INFO L93 Difference]: Finished difference Result 22561 states and 31593 transitions. [2023-12-25 09:31:20,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:20,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-25 09:31:20,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:20,315 INFO L225 Difference]: With dead ends: 22561 [2023-12-25 09:31:20,316 INFO L226 Difference]: Without dead ends: 13531 [2023-12-25 09:31:20,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:20,324 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 446 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:20,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1420 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:20,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13531 states. [2023-12-25 09:31:20,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13531 to 13435. [2023-12-25 09:31:20,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13435 states, 13428 states have (on average 1.3700476616026214) internal successors, (18397), 13434 states have internal predecessors, (18397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13435 states to 13435 states and 18397 transitions. [2023-12-25 09:31:20,460 INFO L78 Accepts]: Start accepts. Automaton has 13435 states and 18397 transitions. Word has length 66 [2023-12-25 09:31:20,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:20,460 INFO L495 AbstractCegarLoop]: Abstraction has 13435 states and 18397 transitions. [2023-12-25 09:31:20,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 13435 states and 18397 transitions. [2023-12-25 09:31:20,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 09:31:20,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:20,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:20,469 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 (12)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:20,668 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 [2023-12-25 09:31:20,669 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:20,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:20,669 INFO L85 PathProgramCache]: Analyzing trace with hash -513939457, now seen corresponding path program 1 times [2023-12-25 09:31:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:20,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043721566] [2023-12-25 09:31:20,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:20,669 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 [2023-12-25 09:31:20,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:20,670 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) [2023-12-25 09:31:20,671 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 [2023-12-25 09:31:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:20,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:20,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:20,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:20,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:20,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043721566] [2023-12-25 09:31:20,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043721566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:20,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:20,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:20,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609262297] [2023-12-25 09:31:20,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:20,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:20,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:20,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:20,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:20,935 INFO L87 Difference]: Start difference. First operand 13435 states and 18397 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:21,022 INFO L93 Difference]: Finished difference Result 18939 states and 25910 transitions. [2023-12-25 09:31:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:21,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-25 09:31:21,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:21,034 INFO L225 Difference]: With dead ends: 18939 [2023-12-25 09:31:21,034 INFO L226 Difference]: Without dead ends: 13840 [2023-12-25 09:31:21,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:21,042 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 353 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:21,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1239 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:21,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13840 states. [2023-12-25 09:31:21,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13840 to 12590. [2023-12-25 09:31:21,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12590 states, 12583 states have (on average 1.3384725423190018) internal successors, (16842), 12589 states have internal predecessors, (16842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12590 states to 12590 states and 16842 transitions. [2023-12-25 09:31:21,196 INFO L78 Accepts]: Start accepts. Automaton has 12590 states and 16842 transitions. Word has length 67 [2023-12-25 09:31:21,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:21,196 INFO L495 AbstractCegarLoop]: Abstraction has 12590 states and 16842 transitions. [2023-12-25 09:31:21,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:21,196 INFO L276 IsEmpty]: Start isEmpty. Operand 12590 states and 16842 transitions. [2023-12-25 09:31:21,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 09:31:21,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:21,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:21,207 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 (13)] Ended with exit code 0 [2023-12-25 09:31:21,404 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 [2023-12-25 09:31:21,404 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:21,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:21,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1189983517, now seen corresponding path program 1 times [2023-12-25 09:31:21,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:21,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222198284] [2023-12-25 09:31:21,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:21,405 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 [2023-12-25 09:31:21,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:21,406 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) [2023-12-25 09:31:21,407 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 [2023-12-25 09:31:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:21,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:31:21,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:22,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:22,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:22,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222198284] [2023-12-25 09:31:22,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222198284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:22,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:22,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:31:22,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199290498] [2023-12-25 09:31:22,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:22,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:31:22,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:22,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:31:22,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:31:22,015 INFO L87 Difference]: Start difference. First operand 12590 states and 16842 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:23,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:23,520 INFO L93 Difference]: Finished difference Result 30494 states and 41556 transitions. [2023-12-25 09:31:23,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:31:23,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-25 09:31:23,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:23,540 INFO L225 Difference]: With dead ends: 30494 [2023-12-25 09:31:23,540 INFO L226 Difference]: Without dead ends: 21397 [2023-12-25 09:31:23,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:31:23,556 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 2272 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:23,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 1877 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:31:23,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21397 states. [2023-12-25 09:31:23,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21397 to 12464. [2023-12-25 09:31:23,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12464 states, 12457 states have (on average 1.3384442482138557) internal successors, (16673), 12463 states have internal predecessors, (16673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12464 states to 12464 states and 16673 transitions. [2023-12-25 09:31:23,704 INFO L78 Accepts]: Start accepts. Automaton has 12464 states and 16673 transitions. Word has length 67 [2023-12-25 09:31:23,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:23,705 INFO L495 AbstractCegarLoop]: Abstraction has 12464 states and 16673 transitions. [2023-12-25 09:31:23,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 12464 states and 16673 transitions. [2023-12-25 09:31:23,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 09:31:23,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:23,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:23,717 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 (14)] Ended with exit code 0 [2023-12-25 09:31:23,912 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 [2023-12-25 09:31:23,912 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:23,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:23,913 INFO L85 PathProgramCache]: Analyzing trace with hash 680595235, now seen corresponding path program 1 times [2023-12-25 09:31:23,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:23,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503373743] [2023-12-25 09:31:23,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:23,913 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 [2023-12-25 09:31:23,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:23,915 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) [2023-12-25 09:31:23,915 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 [2023-12-25 09:31:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:24,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 09:31:24,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:24,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:24,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:24,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:24,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503373743] [2023-12-25 09:31:24,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503373743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:24,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:24,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:31:24,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772418696] [2023-12-25 09:31:24,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:24,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 09:31:24,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:24,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 09:31:24,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 09:31:24,411 INFO L87 Difference]: Start difference. First operand 12464 states and 16673 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:25,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:25,551 INFO L93 Difference]: Finished difference Result 16119 states and 21650 transitions. [2023-12-25 09:31:25,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:31:25,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-25 09:31:25,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:25,562 INFO L225 Difference]: With dead ends: 16119 [2023-12-25 09:31:25,562 INFO L226 Difference]: Without dead ends: 13406 [2023-12-25 09:31:25,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 09:31:25,570 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 2775 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:25,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2775 Valid, 1355 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 09:31:25,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13406 states. [2023-12-25 09:31:25,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13406 to 12148. [2023-12-25 09:31:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12148 states, 12141 states have (on average 1.3383576311671197) internal successors, (16249), 12147 states have internal predecessors, (16249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12148 states to 12148 states and 16249 transitions. [2023-12-25 09:31:25,672 INFO L78 Accepts]: Start accepts. Automaton has 12148 states and 16249 transitions. Word has length 68 [2023-12-25 09:31:25,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:25,672 INFO L495 AbstractCegarLoop]: Abstraction has 12148 states and 16249 transitions. [2023-12-25 09:31:25,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 12148 states and 16249 transitions. [2023-12-25 09:31:25,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 09:31:25,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:25,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:25,680 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 0 [2023-12-25 09:31:25,877 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 [2023-12-25 09:31:25,877 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:25,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1167247887, now seen corresponding path program 1 times [2023-12-25 09:31:25,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:25,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280539381] [2023-12-25 09:31:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:25,878 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 [2023-12-25 09:31:25,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:25,879 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-12-25 09:31:25,879 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 (16)] Waiting until timeout for monitored process [2023-12-25 09:31:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:26,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:31:26,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:26,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:26,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:26,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280539381] [2023-12-25 09:31:26,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280539381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:26,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:26,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:31:26,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157348745] [2023-12-25 09:31:26,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:26,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:31:26,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:26,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:31:26,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:31:26,248 INFO L87 Difference]: Start difference. First operand 12148 states and 16249 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:26,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:26,833 INFO L93 Difference]: Finished difference Result 50684 states and 68538 transitions. [2023-12-25 09:31:26,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:31:26,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-25 09:31:26,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:26,868 INFO L225 Difference]: With dead ends: 50684 [2023-12-25 09:31:26,868 INFO L226 Difference]: Without dead ends: 41776 [2023-12-25 09:31:26,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:31:26,881 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 1554 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:26,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 1310 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:31:26,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41776 states. [2023-12-25 09:31:27,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41776 to 12170. [2023-12-25 09:31:27,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12170 states, 12163 states have (on average 1.329523966126778) internal successors, (16171), 12169 states have internal predecessors, (16171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:27,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12170 states to 12170 states and 16171 transitions. [2023-12-25 09:31:27,127 INFO L78 Accepts]: Start accepts. Automaton has 12170 states and 16171 transitions. Word has length 68 [2023-12-25 09:31:27,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:27,128 INFO L495 AbstractCegarLoop]: Abstraction has 12170 states and 16171 transitions. [2023-12-25 09:31:27,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:27,128 INFO L276 IsEmpty]: Start isEmpty. Operand 12170 states and 16171 transitions. [2023-12-25 09:31:27,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 09:31:27,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:27,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:27,135 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 (16)] Ended with exit code 0 [2023-12-25 09:31:27,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-12-25 09:31:27,332 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:27,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:27,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2097490812, now seen corresponding path program 1 times [2023-12-25 09:31:27,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:27,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469253929] [2023-12-25 09:31:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:27,333 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 [2023-12-25 09:31:27,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:27,334 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-12-25 09:31:27,335 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 (17)] Waiting until timeout for monitored process [2023-12-25 09:31:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:27,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:31:27,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:27,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:27,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469253929] [2023-12-25 09:31:27,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469253929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:27,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:31:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242115160] [2023-12-25 09:31:27,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:27,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:31:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:27,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:31:27,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:31:27,923 INFO L87 Difference]: Start difference. First operand 12170 states and 16171 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:29,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:29,474 INFO L93 Difference]: Finished difference Result 26502 states and 35825 transitions. [2023-12-25 09:31:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:31:29,475 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-25 09:31:29,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:29,492 INFO L225 Difference]: With dead ends: 26502 [2023-12-25 09:31:29,493 INFO L226 Difference]: Without dead ends: 19367 [2023-12-25 09:31:29,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:31:29,502 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 2111 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:29,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 2056 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 09:31:29,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19367 states. [2023-12-25 09:31:29,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19367 to 12146. [2023-12-25 09:31:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12146 states, 12139 states have (on average 1.329022159980229) internal successors, (16133), 12145 states have internal predecessors, (16133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12146 states to 12146 states and 16133 transitions. [2023-12-25 09:31:29,636 INFO L78 Accepts]: Start accepts. Automaton has 12146 states and 16133 transitions. Word has length 68 [2023-12-25 09:31:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:29,637 INFO L495 AbstractCegarLoop]: Abstraction has 12146 states and 16133 transitions. [2023-12-25 09:31:29,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 12146 states and 16133 transitions. [2023-12-25 09:31:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 09:31:29,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:29,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:29,648 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 (17)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:29,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 [2023-12-25 09:31:29,841 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:29,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2111634662, now seen corresponding path program 1 times [2023-12-25 09:31:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:29,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73909481] [2023-12-25 09:31:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:29,842 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 [2023-12-25 09:31:29,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:29,843 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-25 09:31:29,844 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 (18)] Waiting until timeout for monitored process [2023-12-25 09:31:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:30,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:31:30,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:30,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:30,487 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:30,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:30,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73909481] [2023-12-25 09:31:30,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73909481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:30,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:30,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:31:30,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674580527] [2023-12-25 09:31:30,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:30,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:31:30,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:30,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:31:30,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:31:30,489 INFO L87 Difference]: Start difference. First operand 12146 states and 16133 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:32,091 INFO L93 Difference]: Finished difference Result 21513 states and 28959 transitions. [2023-12-25 09:31:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:31:32,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-25 09:31:32,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:32,106 INFO L225 Difference]: With dead ends: 21513 [2023-12-25 09:31:32,106 INFO L226 Difference]: Without dead ends: 16873 [2023-12-25 09:31:32,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:31:32,113 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 2548 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2548 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:32,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2548 Valid, 2071 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:31:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16873 states. [2023-12-25 09:31:32,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16873 to 12134. [2023-12-25 09:31:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12134 states, 12127 states have (on average 1.3284406695802755) internal successors, (16110), 12133 states have internal predecessors, (16110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:32,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12134 states to 12134 states and 16110 transitions. [2023-12-25 09:31:32,224 INFO L78 Accepts]: Start accepts. Automaton has 12134 states and 16110 transitions. Word has length 68 [2023-12-25 09:31:32,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:32,224 INFO L495 AbstractCegarLoop]: Abstraction has 12134 states and 16110 transitions. [2023-12-25 09:31:32,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 12134 states and 16110 transitions. [2023-12-25 09:31:32,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:31:32,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:32,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:32,232 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 (18)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:32,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-25 09:31:32,430 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:32,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1885132627, now seen corresponding path program 1 times [2023-12-25 09:31:32,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:32,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785674311] [2023-12-25 09:31:32,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:32,431 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 [2023-12-25 09:31:32,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:32,432 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-25 09:31:32,432 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 (19)] Waiting until timeout for monitored process [2023-12-25 09:31:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:32,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:31:32,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:33,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:33,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:33,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785674311] [2023-12-25 09:31:33,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785674311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:33,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:33,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-25 09:31:33,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590137408] [2023-12-25 09:31:33,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:33,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 09:31:33,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:33,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 09:31:33,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 09:31:33,664 INFO L87 Difference]: Start difference. First operand 12134 states and 16110 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:35,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:35,510 INFO L93 Difference]: Finished difference Result 34660 states and 46793 transitions. [2023-12-25 09:31:35,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 09:31:35,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-25 09:31:35,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:35,534 INFO L225 Difference]: With dead ends: 34660 [2023-12-25 09:31:35,534 INFO L226 Difference]: Without dead ends: 23631 [2023-12-25 09:31:35,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:31:35,547 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 3816 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3816 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:35,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3816 Valid, 3596 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:31:35,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23631 states. [2023-12-25 09:31:35,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23631 to 21455. [2023-12-25 09:31:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21455 states, 21449 states have (on average 1.3502261177677282) internal successors, (28961), 21454 states have internal predecessors, (28961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21455 states to 21455 states and 28961 transitions. [2023-12-25 09:31:35,762 INFO L78 Accepts]: Start accepts. Automaton has 21455 states and 28961 transitions. Word has length 69 [2023-12-25 09:31:35,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:35,762 INFO L495 AbstractCegarLoop]: Abstraction has 21455 states and 28961 transitions. [2023-12-25 09:31:35,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 21455 states and 28961 transitions. [2023-12-25 09:31:35,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:31:35,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:35,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:35,771 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 (19)] Ended with exit code 0 [2023-12-25 09:31:35,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-25 09:31:35,971 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:35,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash -578802053, now seen corresponding path program 1 times [2023-12-25 09:31:35,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:35,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960038145] [2023-12-25 09:31:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:35,973 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 [2023-12-25 09:31:35,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:35,974 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-25 09:31:35,976 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 (20)] Waiting until timeout for monitored process [2023-12-25 09:31:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:36,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 09:31:36,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:36,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:36,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:36,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960038145] [2023-12-25 09:31:36,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960038145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:36,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:36,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 09:31:36,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985751610] [2023-12-25 09:31:36,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:36,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 09:31:36,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:36,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 09:31:36,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:31:36,932 INFO L87 Difference]: Start difference. First operand 21455 states and 28961 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:38,220 INFO L93 Difference]: Finished difference Result 58397 states and 79591 transitions. [2023-12-25 09:31:38,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:31:38,221 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-25 09:31:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:38,261 INFO L225 Difference]: With dead ends: 58397 [2023-12-25 09:31:38,261 INFO L226 Difference]: Without dead ends: 38278 [2023-12-25 09:31:38,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-25 09:31:38,280 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1966 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:38,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 2467 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:31:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38278 states. [2023-12-25 09:31:38,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38278 to 23263. [2023-12-25 09:31:38,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23263 states, 23259 states have (on average 1.3615804634765036) internal successors, (31669), 23262 states have internal predecessors, (31669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:38,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23263 states to 23263 states and 31669 transitions. [2023-12-25 09:31:38,578 INFO L78 Accepts]: Start accepts. Automaton has 23263 states and 31669 transitions. Word has length 69 [2023-12-25 09:31:38,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:38,579 INFO L495 AbstractCegarLoop]: Abstraction has 23263 states and 31669 transitions. [2023-12-25 09:31:38,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:38,579 INFO L276 IsEmpty]: Start isEmpty. Operand 23263 states and 31669 transitions. [2023-12-25 09:31:38,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:31:38,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:38,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:38,585 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 (20)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:38,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-25 09:31:38,782 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:38,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1516776224, now seen corresponding path program 1 times [2023-12-25 09:31:38,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:38,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657649687] [2023-12-25 09:31:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:38,783 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 [2023-12-25 09:31:38,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:38,784 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-25 09:31:38,787 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 (21)] Waiting until timeout for monitored process [2023-12-25 09:31:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:39,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 09:31:39,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:39,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:39,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:39,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657649687] [2023-12-25 09:31:39,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657649687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:39,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:39,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 09:31:39,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403022766] [2023-12-25 09:31:39,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:39,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 09:31:39,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:39,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 09:31:39,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:31:39,784 INFO L87 Difference]: Start difference. First operand 23263 states and 31669 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:40,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:40,766 INFO L93 Difference]: Finished difference Result 58648 states and 80160 transitions. [2023-12-25 09:31:40,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:31:40,766 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-25 09:31:40,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:40,807 INFO L225 Difference]: With dead ends: 58648 [2023-12-25 09:31:40,808 INFO L226 Difference]: Without dead ends: 40867 [2023-12-25 09:31:40,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:31:40,830 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1353 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:40,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 2531 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:31:40,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40867 states. [2023-12-25 09:31:41,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40867 to 34090. [2023-12-25 09:31:41,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34090 states, 34087 states have (on average 1.366738052630035) internal successors, (46588), 34089 states have internal predecessors, (46588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34090 states to 34090 states and 46588 transitions. [2023-12-25 09:31:41,175 INFO L78 Accepts]: Start accepts. Automaton has 34090 states and 46588 transitions. Word has length 69 [2023-12-25 09:31:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:41,176 INFO L495 AbstractCegarLoop]: Abstraction has 34090 states and 46588 transitions. [2023-12-25 09:31:41,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 34090 states and 46588 transitions. [2023-12-25 09:31:41,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:31:41,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:41,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:41,182 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:41,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-25 09:31:41,379 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:41,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:41,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1227479287, now seen corresponding path program 1 times [2023-12-25 09:31:41,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:41,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015710692] [2023-12-25 09:31:41,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:41,380 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 [2023-12-25 09:31:41,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:41,381 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-25 09:31:41,381 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 (22)] Waiting until timeout for monitored process [2023-12-25 09:31:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:41,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:41,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:41,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:41,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:41,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015710692] [2023-12-25 09:31:41,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015710692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:41,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:41,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:41,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322860345] [2023-12-25 09:31:41,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:41,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:41,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:41,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:41,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:41,632 INFO L87 Difference]: Start difference. First operand 34090 states and 46588 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:41,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:41,885 INFO L93 Difference]: Finished difference Result 45284 states and 61786 transitions. [2023-12-25 09:31:41,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:41,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-25 09:31:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:41,910 INFO L225 Difference]: With dead ends: 45284 [2023-12-25 09:31:41,910 INFO L226 Difference]: Without dead ends: 27241 [2023-12-25 09:31:41,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:41,920 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 257 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:41,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 735 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:41,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27241 states. [2023-12-25 09:31:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27241 to 26253. [2023-12-25 09:31:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26253 states, 26250 states have (on average 1.351504761904762) internal successors, (35477), 26252 states have internal predecessors, (35477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26253 states to 26253 states and 35477 transitions. [2023-12-25 09:31:42,161 INFO L78 Accepts]: Start accepts. Automaton has 26253 states and 35477 transitions. Word has length 69 [2023-12-25 09:31:42,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:42,162 INFO L495 AbstractCegarLoop]: Abstraction has 26253 states and 35477 transitions. [2023-12-25 09:31:42,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:42,162 INFO L276 IsEmpty]: Start isEmpty. Operand 26253 states and 35477 transitions. [2023-12-25 09:31:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:31:42,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:42,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:42,167 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 (22)] Ended with exit code 0 [2023-12-25 09:31:42,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-25 09:31:42,366 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:42,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash -360349785, now seen corresponding path program 1 times [2023-12-25 09:31:42,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:42,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288994654] [2023-12-25 09:31:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:42,367 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 [2023-12-25 09:31:42,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:42,367 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-25 09:31:42,368 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 (23)] Waiting until timeout for monitored process [2023-12-25 09:31:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:42,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:31:42,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:43,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:43,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288994654] [2023-12-25 09:31:43,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288994654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:43,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:43,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-25 09:31:43,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892468455] [2023-12-25 09:31:43,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:43,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 09:31:43,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:43,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 09:31:43,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 09:31:43,575 INFO L87 Difference]: Start difference. First operand 26253 states and 35477 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:44,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:44,907 INFO L93 Difference]: Finished difference Result 41626 states and 56273 transitions. [2023-12-25 09:31:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 09:31:44,909 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-25 09:31:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:44,937 INFO L225 Difference]: With dead ends: 41626 [2023-12-25 09:31:44,937 INFO L226 Difference]: Without dead ends: 29555 [2023-12-25 09:31:44,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:31:44,952 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1337 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:44,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 2686 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:31:44,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29555 states. [2023-12-25 09:31:45,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29555 to 26028. [2023-12-25 09:31:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26028 states, 26027 states have (on average 1.3518269489376418) internal successors, (35184), 26027 states have internal predecessors, (35184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:45,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26028 states to 26028 states and 35184 transitions. [2023-12-25 09:31:45,249 INFO L78 Accepts]: Start accepts. Automaton has 26028 states and 35184 transitions. Word has length 69 [2023-12-25 09:31:45,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:45,249 INFO L495 AbstractCegarLoop]: Abstraction has 26028 states and 35184 transitions. [2023-12-25 09:31:45,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:45,250 INFO L276 IsEmpty]: Start isEmpty. Operand 26028 states and 35184 transitions. [2023-12-25 09:31:45,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:31:45,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:45,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:45,274 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 (23)] Ended with exit code 0 [2023-12-25 09:31:45,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-25 09:31:45,465 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:45,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:45,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1544222866, now seen corresponding path program 1 times [2023-12-25 09:31:45,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:45,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935143829] [2023-12-25 09:31:45,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:45,466 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 [2023-12-25 09:31:45,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:45,467 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-25 09:31:45,468 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 (24)] Waiting until timeout for monitored process [2023-12-25 09:31:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:45,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:31:45,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:46,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:46,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:46,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:46,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935143829] [2023-12-25 09:31:46,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935143829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:46,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:46,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:31:46,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196002292] [2023-12-25 09:31:46,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:46,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:31:46,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:46,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:31:46,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:31:46,079 INFO L87 Difference]: Start difference. First operand 26028 states and 35184 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:47,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:47,077 INFO L93 Difference]: Finished difference Result 52840 states and 71570 transitions. [2023-12-25 09:31:47,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:31:47,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-25 09:31:47,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:47,110 INFO L225 Difference]: With dead ends: 52840 [2023-12-25 09:31:47,110 INFO L226 Difference]: Without dead ends: 29618 [2023-12-25 09:31:47,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:31:47,128 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1162 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:47,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 1178 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:31:47,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29618 states. [2023-12-25 09:31:47,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29618 to 23626. [2023-12-25 09:31:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23626 states, 23625 states have (on average 1.351068783068783) internal successors, (31919), 23625 states have internal predecessors, (31919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:47,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23626 states to 23626 states and 31919 transitions. [2023-12-25 09:31:47,378 INFO L78 Accepts]: Start accepts. Automaton has 23626 states and 31919 transitions. Word has length 86 [2023-12-25 09:31:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:47,378 INFO L495 AbstractCegarLoop]: Abstraction has 23626 states and 31919 transitions. [2023-12-25 09:31:47,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:47,378 INFO L276 IsEmpty]: Start isEmpty. Operand 23626 states and 31919 transitions. [2023-12-25 09:31:47,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:31:47,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:47,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:47,390 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 (24)] Ended with exit code 0 [2023-12-25 09:31:47,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-25 09:31:47,588 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:47,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:47,588 INFO L85 PathProgramCache]: Analyzing trace with hash -217801487, now seen corresponding path program 1 times [2023-12-25 09:31:47,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:47,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635434512] [2023-12-25 09:31:47,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:47,589 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 [2023-12-25 09:31:47,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:47,589 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-25 09:31:47,590 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 (25)] Waiting until timeout for monitored process [2023-12-25 09:31:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:47,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:31:47,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:48,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:48,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:48,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:48,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635434512] [2023-12-25 09:31:48,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635434512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:48,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:48,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:31:48,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41005665] [2023-12-25 09:31:48,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:48,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:31:48,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:48,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:31:48,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:31:48,221 INFO L87 Difference]: Start difference. First operand 23626 states and 31919 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:49,191 INFO L93 Difference]: Finished difference Result 41979 states and 56793 transitions. [2023-12-25 09:31:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:31:49,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-25 09:31:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:49,217 INFO L225 Difference]: With dead ends: 41979 [2023-12-25 09:31:49,217 INFO L226 Difference]: Without dead ends: 27025 [2023-12-25 09:31:49,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:31:49,230 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1097 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:49,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1232 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:31:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27025 states. [2023-12-25 09:31:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27025 to 23586. [2023-12-25 09:31:49,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23586 states, 23585 states have (on average 1.3503497986008055) internal successors, (31848), 23585 states have internal predecessors, (31848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23586 states to 23586 states and 31848 transitions. [2023-12-25 09:31:49,523 INFO L78 Accepts]: Start accepts. Automaton has 23586 states and 31848 transitions. Word has length 86 [2023-12-25 09:31:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:49,523 INFO L495 AbstractCegarLoop]: Abstraction has 23586 states and 31848 transitions. [2023-12-25 09:31:49,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:49,523 INFO L276 IsEmpty]: Start isEmpty. Operand 23586 states and 31848 transitions. [2023-12-25 09:31:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:31:49,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:49,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:49,534 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 (25)] Ended with exit code 0 [2023-12-25 09:31:49,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-25 09:31:49,730 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:49,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:49,731 INFO L85 PathProgramCache]: Analyzing trace with hash 961560528, now seen corresponding path program 1 times [2023-12-25 09:31:49,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:49,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004701470] [2023-12-25 09:31:49,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:49,731 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 [2023-12-25 09:31:49,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:49,732 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-25 09:31:49,733 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 (26)] Waiting until timeout for monitored process [2023-12-25 09:31:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:49,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:31:49,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:50,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:50,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:50,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004701470] [2023-12-25 09:31:50,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004701470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:50,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:50,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:31:50,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432159960] [2023-12-25 09:31:50,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:50,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:31:50,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:50,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:31:50,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:31:50,277 INFO L87 Difference]: Start difference. First operand 23586 states and 31848 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:51,237 INFO L93 Difference]: Finished difference Result 36350 states and 49162 transitions. [2023-12-25 09:31:51,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:31:51,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-25 09:31:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:51,260 INFO L225 Difference]: With dead ends: 36350 [2023-12-25 09:31:51,260 INFO L226 Difference]: Without dead ends: 23578 [2023-12-25 09:31:51,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:31:51,272 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1536 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:51,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 1192 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:31:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23578 states. [2023-12-25 09:31:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23578 to 23492. [2023-12-25 09:31:51,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23492 states, 23491 states have (on average 1.3507726363288068) internal successors, (31731), 23491 states have internal predecessors, (31731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:51,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23492 states to 23492 states and 31731 transitions. [2023-12-25 09:31:51,516 INFO L78 Accepts]: Start accepts. Automaton has 23492 states and 31731 transitions. Word has length 86 [2023-12-25 09:31:51,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:51,516 INFO L495 AbstractCegarLoop]: Abstraction has 23492 states and 31731 transitions. [2023-12-25 09:31:51,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:51,516 INFO L276 IsEmpty]: Start isEmpty. Operand 23492 states and 31731 transitions. [2023-12-25 09:31:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 09:31:51,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:51,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:51,526 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 (26)] Ended with exit code 0 [2023-12-25 09:31:51,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-25 09:31:51,723 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:51,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash 106736454, now seen corresponding path program 1 times [2023-12-25 09:31:51,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:51,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151983830] [2023-12-25 09:31:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:51,725 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 [2023-12-25 09:31:51,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:51,725 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-25 09:31:51,726 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 (27)] Waiting until timeout for monitored process [2023-12-25 09:31:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:51,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:51,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:51,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:51,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:51,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151983830] [2023-12-25 09:31:51,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151983830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:51,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:51,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:51,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919823081] [2023-12-25 09:31:51,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:51,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:51,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:51,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:51,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:51,984 INFO L87 Difference]: Start difference. First operand 23492 states and 31731 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:52,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:52,130 INFO L93 Difference]: Finished difference Result 64652 states and 87985 transitions. [2023-12-25 09:31:52,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:52,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-25 09:31:52,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:52,170 INFO L225 Difference]: With dead ends: 64652 [2023-12-25 09:31:52,171 INFO L226 Difference]: Without dead ends: 42146 [2023-12-25 09:31:52,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:52,192 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 155 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:52,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 662 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:52,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42146 states. [2023-12-25 09:31:52,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42146 to 42144. [2023-12-25 09:31:52,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42144 states, 42143 states have (on average 1.3505208456920486) internal successors, (56915), 42143 states have internal predecessors, (56915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:52,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42144 states to 42144 states and 56915 transitions. [2023-12-25 09:31:52,671 INFO L78 Accepts]: Start accepts. Automaton has 42144 states and 56915 transitions. Word has length 87 [2023-12-25 09:31:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:52,671 INFO L495 AbstractCegarLoop]: Abstraction has 42144 states and 56915 transitions. [2023-12-25 09:31:52,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand 42144 states and 56915 transitions. [2023-12-25 09:31:52,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 09:31:52,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:52,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:52,678 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 (27)] Ended with exit code 0 [2023-12-25 09:31:52,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-25 09:31:52,876 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:52,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1286083711, now seen corresponding path program 1 times [2023-12-25 09:31:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926918048] [2023-12-25 09:31:52,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:52,877 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 [2023-12-25 09:31:52,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:52,877 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-25 09:31:52,879 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 (28)] Waiting until timeout for monitored process [2023-12-25 09:31:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:53,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:53,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:53,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:53,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926918048] [2023-12-25 09:31:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926918048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:53,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:53,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:53,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208759371] [2023-12-25 09:31:53,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:53,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:53,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:53,137 INFO L87 Difference]: Start difference. First operand 42144 states and 56915 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:53,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:53,507 INFO L93 Difference]: Finished difference Result 117040 states and 158425 transitions. [2023-12-25 09:31:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:53,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 09:31:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:53,581 INFO L225 Difference]: With dead ends: 117040 [2023-12-25 09:31:53,581 INFO L226 Difference]: Without dead ends: 75882 [2023-12-25 09:31:53,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:53,608 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 153 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:53,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 646 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:53,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75882 states. [2023-12-25 09:31:54,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75882 to 75880. [2023-12-25 09:31:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75880 states, 75879 states have (on average 1.3407530410258437) internal successors, (101735), 75879 states have internal predecessors, (101735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75880 states to 75880 states and 101735 transitions. [2023-12-25 09:31:54,475 INFO L78 Accepts]: Start accepts. Automaton has 75880 states and 101735 transitions. Word has length 88 [2023-12-25 09:31:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:54,476 INFO L495 AbstractCegarLoop]: Abstraction has 75880 states and 101735 transitions. [2023-12-25 09:31:54,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:54,476 INFO L276 IsEmpty]: Start isEmpty. Operand 75880 states and 101735 transitions. [2023-12-25 09:31:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 09:31:54,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:54,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:54,482 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:54,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-25 09:31:54,679 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:54,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:54,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1241309303, now seen corresponding path program 1 times [2023-12-25 09:31:54,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:54,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200691545] [2023-12-25 09:31:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:54,680 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 [2023-12-25 09:31:54,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:54,681 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-25 09:31:54,682 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 (29)] Waiting until timeout for monitored process [2023-12-25 09:31:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:54,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:54,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:54,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:54,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:54,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:54,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200691545] [2023-12-25 09:31:54,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200691545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:54,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:54,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:54,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555723793] [2023-12-25 09:31:54,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:54,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:54,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:54,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:54,964 INFO L87 Difference]: Start difference. First operand 75880 states and 101735 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:55,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:55,157 INFO L93 Difference]: Finished difference Result 95440 states and 127937 transitions. [2023-12-25 09:31:55,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:55,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-25 09:31:55,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:55,458 INFO L225 Difference]: With dead ends: 95440 [2023-12-25 09:31:55,459 INFO L226 Difference]: Without dead ends: 55129 [2023-12-25 09:31:55,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:55,494 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 184 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:55,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 673 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:55,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55129 states. [2023-12-25 09:31:55,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55129 to 40679. [2023-12-25 09:31:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40679 states, 40678 states have (on average 1.3305718078568267) internal successors, (54125), 40678 states have internal predecessors, (54125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40679 states to 40679 states and 54125 transitions. [2023-12-25 09:31:56,023 INFO L78 Accepts]: Start accepts. Automaton has 40679 states and 54125 transitions. Word has length 89 [2023-12-25 09:31:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:56,023 INFO L495 AbstractCegarLoop]: Abstraction has 40679 states and 54125 transitions. [2023-12-25 09:31:56,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:56,024 INFO L276 IsEmpty]: Start isEmpty. Operand 40679 states and 54125 transitions. [2023-12-25 09:31:56,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 09:31:56,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:56,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:56,044 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:56,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-25 09:31:56,230 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:56,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:56,231 INFO L85 PathProgramCache]: Analyzing trace with hash -254066092, now seen corresponding path program 1 times [2023-12-25 09:31:56,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:56,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462206397] [2023-12-25 09:31:56,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:56,231 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 [2023-12-25 09:31:56,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:56,232 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-25 09:31:56,233 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 (30)] Waiting until timeout for monitored process [2023-12-25 09:31:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:56,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:56,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:56,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:56,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:56,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462206397] [2023-12-25 09:31:56,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462206397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:56,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:56,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:56,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567065121] [2023-12-25 09:31:56,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:56,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:56,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:56,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:56,495 INFO L87 Difference]: Start difference. First operand 40679 states and 54125 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:56,856 INFO L93 Difference]: Finished difference Result 112883 states and 150151 transitions. [2023-12-25 09:31:56,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:56,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-25 09:31:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:56,930 INFO L225 Difference]: With dead ends: 112883 [2023-12-25 09:31:56,931 INFO L226 Difference]: Without dead ends: 72917 [2023-12-25 09:31:56,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:56,946 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 158 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:56,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 619 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72917 states. [2023-12-25 09:31:57,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72917 to 72915. [2023-12-25 09:31:57,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72915 states, 72914 states have (on average 1.3152069561401103) internal successors, (95897), 72914 states have internal predecessors, (95897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:57,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72915 states to 72915 states and 95897 transitions. [2023-12-25 09:31:57,812 INFO L78 Accepts]: Start accepts. Automaton has 72915 states and 95897 transitions. Word has length 89 [2023-12-25 09:31:57,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:31:57,812 INFO L495 AbstractCegarLoop]: Abstraction has 72915 states and 95897 transitions. [2023-12-25 09:31:57,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:57,812 INFO L276 IsEmpty]: Start isEmpty. Operand 72915 states and 95897 transitions. [2023-12-25 09:31:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 09:31:57,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:31:57,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:31:57,832 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 09:31:58,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-25 09:31:58,017 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:31:58,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:31:58,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1475713053, now seen corresponding path program 1 times [2023-12-25 09:31:58,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:31:58,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930590511] [2023-12-25 09:31:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:31:58,018 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 [2023-12-25 09:31:58,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:31:58,019 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-25 09:31:58,020 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 (31)] Waiting until timeout for monitored process [2023-12-25 09:31:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:31:58,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:31:58,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:31:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:31:58,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:31:58,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:31:58,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930590511] [2023-12-25 09:31:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930590511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:31:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:31:58,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:31:58,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579372894] [2023-12-25 09:31:58,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:31:58,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:31:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:31:58,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:31:58,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:58,298 INFO L87 Difference]: Start difference. First operand 72915 states and 95897 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:31:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:31:58,817 INFO L93 Difference]: Finished difference Result 190919 states and 252209 transitions. [2023-12-25 09:31:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:31:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-25 09:31:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:31:58,952 INFO L225 Difference]: With dead ends: 190919 [2023-12-25 09:31:58,953 INFO L226 Difference]: Without dead ends: 114541 [2023-12-25 09:31:58,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:31:58,999 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 180 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:31:58,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 568 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:31:59,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114541 states. [2023-12-25 09:32:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114541 to 112446. [2023-12-25 09:32:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112446 states, 112445 states have (on average 1.3095113166436925) internal successors, (147248), 112445 states have internal predecessors, (147248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112446 states to 112446 states and 147248 transitions. [2023-12-25 09:32:00,333 INFO L78 Accepts]: Start accepts. Automaton has 112446 states and 147248 transitions. Word has length 90 [2023-12-25 09:32:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:32:00,333 INFO L495 AbstractCegarLoop]: Abstraction has 112446 states and 147248 transitions. [2023-12-25 09:32:00,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 112446 states and 147248 transitions. [2023-12-25 09:32:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 09:32:00,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:32:00,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:32:00,340 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 09:32:00,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-25 09:32:00,536 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:32:00,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:32:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1307855058, now seen corresponding path program 1 times [2023-12-25 09:32:00,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:32:00,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125323882] [2023-12-25 09:32:00,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:32:00,536 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 [2023-12-25 09:32:00,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:32:00,537 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-25 09:32:00,538 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 (32)] Waiting until timeout for monitored process [2023-12-25 09:32:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:32:00,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:32:00,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:32:01,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:01,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:32:01,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:32:01,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125323882] [2023-12-25 09:32:01,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125323882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:32:01,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:32:01,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:32:01,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499394500] [2023-12-25 09:32:01,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:32:01,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:32:01,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:32:01,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:32:01,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:32:01,424 INFO L87 Difference]: Start difference. First operand 112446 states and 147248 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:02,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:32:02,796 INFO L93 Difference]: Finished difference Result 444588 states and 583217 transitions. [2023-12-25 09:32:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:32:02,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-25 09:32:02,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:32:03,208 INFO L225 Difference]: With dead ends: 444588 [2023-12-25 09:32:03,208 INFO L226 Difference]: Without dead ends: 332855 [2023-12-25 09:32:03,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:32:03,286 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 686 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:32:03,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 812 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:32:03,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332855 states. [2023-12-25 09:32:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332855 to 224174. [2023-12-25 09:32:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224174 states, 224173 states have (on average 1.2827682191878593) internal successors, (287562), 224173 states have internal predecessors, (287562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224174 states to 224174 states and 287562 transitions. [2023-12-25 09:32:06,583 INFO L78 Accepts]: Start accepts. Automaton has 224174 states and 287562 transitions. Word has length 93 [2023-12-25 09:32:06,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:32:06,583 INFO L495 AbstractCegarLoop]: Abstraction has 224174 states and 287562 transitions. [2023-12-25 09:32:06,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand 224174 states and 287562 transitions. [2023-12-25 09:32:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 09:32:06,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:32:06,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:32:06,588 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 (32)] Ended with exit code 0 [2023-12-25 09:32:06,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-25 09:32:06,788 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:32:06,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:32:06,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1113904835, now seen corresponding path program 1 times [2023-12-25 09:32:06,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:32:06,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553341600] [2023-12-25 09:32:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:32:06,789 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 [2023-12-25 09:32:06,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:32:06,790 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-25 09:32:06,790 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 (33)] Waiting until timeout for monitored process [2023-12-25 09:32:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:32:07,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:32:07,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:32:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:07,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:32:07,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:32:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553341600] [2023-12-25 09:32:07,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553341600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:32:07,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:32:07,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:32:07,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689685537] [2023-12-25 09:32:07,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:32:07,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:32:07,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:32:07,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:32:07,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:32:07,062 INFO L87 Difference]: Start difference. First operand 224174 states and 287562 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:08,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:32:08,478 INFO L93 Difference]: Finished difference Result 474700 states and 601697 transitions. [2023-12-25 09:32:08,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:32:08,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-25 09:32:08,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:32:09,131 INFO L225 Difference]: With dead ends: 474700 [2023-12-25 09:32:09,131 INFO L226 Difference]: Without dead ends: 474693 [2023-12-25 09:32:09,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:32:09,472 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 403 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:32:09,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1309 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:32:09,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474693 states. [2023-12-25 09:32:12,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474693 to 242604. [2023-12-25 09:32:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242604 states, 242603 states have (on average 1.2612745926472468) internal successors, (305989), 242603 states have internal predecessors, (305989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:13,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242604 states to 242604 states and 305989 transitions. [2023-12-25 09:32:13,250 INFO L78 Accepts]: Start accepts. Automaton has 242604 states and 305989 transitions. Word has length 94 [2023-12-25 09:32:13,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:32:13,251 INFO L495 AbstractCegarLoop]: Abstraction has 242604 states and 305989 transitions. [2023-12-25 09:32:13,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:13,251 INFO L276 IsEmpty]: Start isEmpty. Operand 242604 states and 305989 transitions. [2023-12-25 09:32:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 09:32:13,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:32:13,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:32:13,258 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 09:32:13,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-25 09:32:13,454 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:32:13,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:32:13,454 INFO L85 PathProgramCache]: Analyzing trace with hash 676415324, now seen corresponding path program 1 times [2023-12-25 09:32:13,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:32:13,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838374924] [2023-12-25 09:32:13,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:32:13,454 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 [2023-12-25 09:32:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:32:13,455 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-25 09:32:13,456 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 (34)] Waiting until timeout for monitored process [2023-12-25 09:32:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:32:13,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:32:13,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:32:13,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:13,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:32:13,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:32:13,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838374924] [2023-12-25 09:32:13,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838374924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:32:13,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:32:13,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:32:13,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313298302] [2023-12-25 09:32:13,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:32:13,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:32:13,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:32:13,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:32:13,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:32:13,786 INFO L87 Difference]: Start difference. First operand 242604 states and 305989 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:15,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:32:15,401 INFO L93 Difference]: Finished difference Result 543198 states and 683995 transitions. [2023-12-25 09:32:15,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:32:15,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-25 09:32:15,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:32:15,775 INFO L225 Difference]: With dead ends: 543198 [2023-12-25 09:32:15,776 INFO L226 Difference]: Without dead ends: 301292 [2023-12-25 09:32:15,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:32:15,848 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 231 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:32:15,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 797 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:32:16,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301292 states. [2023-12-25 09:32:18,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301292 to 301287. [2023-12-25 09:32:18,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301287 states, 301286 states have (on average 1.2516512549537648) internal successors, (377105), 301286 states have internal predecessors, (377105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301287 states to 301287 states and 377105 transitions. [2023-12-25 09:32:19,204 INFO L78 Accepts]: Start accepts. Automaton has 301287 states and 377105 transitions. Word has length 95 [2023-12-25 09:32:19,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:32:19,204 INFO L495 AbstractCegarLoop]: Abstraction has 301287 states and 377105 transitions. [2023-12-25 09:32:19,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 301287 states and 377105 transitions. [2023-12-25 09:32:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 09:32:19,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:32:19,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:32:19,211 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 (34)] Forceful destruction successful, exit code 0 [2023-12-25 09:32:19,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-25 09:32:19,407 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:32:19,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:32:19,408 INFO L85 PathProgramCache]: Analyzing trace with hash -550444979, now seen corresponding path program 1 times [2023-12-25 09:32:19,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:32:19,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545221169] [2023-12-25 09:32:19,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:32:19,408 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 [2023-12-25 09:32:19,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:32:19,409 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-25 09:32:19,410 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 (35)] Waiting until timeout for monitored process [2023-12-25 09:32:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:32:19,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:32:19,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:32:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:20,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:32:20,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:32:20,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545221169] [2023-12-25 09:32:20,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545221169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:32:20,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:32:20,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:32:20,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921044419] [2023-12-25 09:32:20,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:32:20,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:32:20,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:32:20,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:32:20,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:32:20,082 INFO L87 Difference]: Start difference. First operand 301287 states and 377105 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:21,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:32:21,959 INFO L93 Difference]: Finished difference Result 524421 states and 649573 transitions. [2023-12-25 09:32:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:32:21,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-25 09:32:21,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:32:22,488 INFO L225 Difference]: With dead ends: 524421 [2023-12-25 09:32:22,488 INFO L226 Difference]: Without dead ends: 397391 [2023-12-25 09:32:22,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:32:22,556 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1588 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:32:22,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 756 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:32:22,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397391 states. [2023-12-25 09:32:25,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397391 to 301230. [2023-12-25 09:32:26,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301230 states, 301229 states have (on average 1.2516490776120492) internal successors, (377033), 301229 states have internal predecessors, (377033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301230 states to 301230 states and 377033 transitions. [2023-12-25 09:32:26,521 INFO L78 Accepts]: Start accepts. Automaton has 301230 states and 377033 transitions. Word has length 96 [2023-12-25 09:32:26,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:32:26,521 INFO L495 AbstractCegarLoop]: Abstraction has 301230 states and 377033 transitions. [2023-12-25 09:32:26,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:26,522 INFO L276 IsEmpty]: Start isEmpty. Operand 301230 states and 377033 transitions. [2023-12-25 09:32:26,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 09:32:26,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:32:26,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:32:26,527 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 (35)] Forceful destruction successful, exit code 0 [2023-12-25 09:32:26,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 [2023-12-25 09:32:26,727 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:32:26,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:32:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash 763747922, now seen corresponding path program 1 times [2023-12-25 09:32:26,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:32:26,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798039054] [2023-12-25 09:32:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:32:26,728 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 [2023-12-25 09:32:26,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:32:26,729 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-25 09:32:26,729 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 (36)] Waiting until timeout for monitored process [2023-12-25 09:32:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:32:27,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:32:27,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:32:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:27,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:32:27,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:32:27,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798039054] [2023-12-25 09:32:27,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798039054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:32:27,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:32:27,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:32:27,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263951825] [2023-12-25 09:32:27,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:32:27,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:32:27,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:32:27,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:32:27,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:32:27,335 INFO L87 Difference]: Start difference. First operand 301230 states and 377033 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:28,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:32:28,295 INFO L93 Difference]: Finished difference Result 345991 states and 432544 transitions. [2023-12-25 09:32:28,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:32:28,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-25 09:32:28,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:32:28,602 INFO L225 Difference]: With dead ends: 345991 [2023-12-25 09:32:28,602 INFO L226 Difference]: Without dead ends: 278631 [2023-12-25 09:32:28,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:32:28,638 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 169 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:32:28,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 686 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:32:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278631 states. [2023-12-25 09:32:31,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278631 to 255475. [2023-12-25 09:32:31,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255475 states, 255474 states have (on average 1.2440365751505045) internal successors, (317819), 255474 states have internal predecessors, (317819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255475 states to 255475 states and 317819 transitions. [2023-12-25 09:32:31,557 INFO L78 Accepts]: Start accepts. Automaton has 255475 states and 317819 transitions. Word has length 97 [2023-12-25 09:32:31,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:32:31,557 INFO L495 AbstractCegarLoop]: Abstraction has 255475 states and 317819 transitions. [2023-12-25 09:32:31,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:31,557 INFO L276 IsEmpty]: Start isEmpty. Operand 255475 states and 317819 transitions. [2023-12-25 09:32:31,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 09:32:31,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:32:31,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:32:31,564 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 (36)] Forceful destruction successful, exit code 0 [2023-12-25 09:32:31,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 [2023-12-25 09:32:31,760 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:32:31,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:32:31,760 INFO L85 PathProgramCache]: Analyzing trace with hash -421015552, now seen corresponding path program 1 times [2023-12-25 09:32:31,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:32:31,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019740702] [2023-12-25 09:32:31,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:32:31,761 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 [2023-12-25 09:32:31,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:32:31,761 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-25 09:32:31,763 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 (37)] Waiting until timeout for monitored process [2023-12-25 09:32:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:32:32,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:32:32,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:32:32,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:32,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:32:32,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:32:32,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019740702] [2023-12-25 09:32:32,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019740702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:32:32,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:32:32,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:32:32,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139465255] [2023-12-25 09:32:32,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:32:32,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:32:32,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:32:32,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:32:32,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:32:32,740 INFO L87 Difference]: Start difference. First operand 255475 states and 317819 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:33,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:32:33,643 INFO L93 Difference]: Finished difference Result 371179 states and 464951 transitions. [2023-12-25 09:32:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:32:33,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-25 09:32:33,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:32:34,042 INFO L225 Difference]: With dead ends: 371179 [2023-12-25 09:32:34,043 INFO L226 Difference]: Without dead ends: 330049 [2023-12-25 09:32:34,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:32:34,124 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1107 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:32:34,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1025 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:32:34,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330049 states. [2023-12-25 09:32:36,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330049 to 270587. [2023-12-25 09:32:36,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270587 states, 270586 states have (on average 1.2407552497172802) internal successors, (335731), 270586 states have internal predecessors, (335731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270587 states to 270587 states and 335731 transitions. [2023-12-25 09:32:37,517 INFO L78 Accepts]: Start accepts. Automaton has 270587 states and 335731 transitions. Word has length 99 [2023-12-25 09:32:37,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:32:37,517 INFO L495 AbstractCegarLoop]: Abstraction has 270587 states and 335731 transitions. [2023-12-25 09:32:37,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 270587 states and 335731 transitions. [2023-12-25 09:32:37,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 09:32:37,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:32:37,536 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:32:37,542 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 (37)] Forceful destruction successful, exit code 0 [2023-12-25 09:32:37,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 [2023-12-25 09:32:37,740 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:32:37,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:32:37,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1480171085, now seen corresponding path program 1 times [2023-12-25 09:32:37,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:32:37,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551829250] [2023-12-25 09:32:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:32:37,741 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 [2023-12-25 09:32:37,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:32:37,742 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-25 09:32:37,743 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 (38)] Waiting until timeout for monitored process [2023-12-25 09:32:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:32:37,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:32:38,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:32:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:38,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:32:39,099 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:39,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:32:39,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551829250] [2023-12-25 09:32:39,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551829250] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:32:39,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:32:39,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:32:39,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447835018] [2023-12-25 09:32:39,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:32:39,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:32:39,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:32:39,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:32:39,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:32:39,100 INFO L87 Difference]: Start difference. First operand 270587 states and 335731 transitions. Second operand has 16 states, 16 states have (on average 14.25) internal successors, (228), 15 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:43,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:32:43,051 INFO L93 Difference]: Finished difference Result 757906 states and 938672 transitions. [2023-12-25 09:32:43,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-25 09:32:43,052 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.25) internal successors, (228), 15 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-25 09:32:43,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:32:43,745 INFO L225 Difference]: With dead ends: 757906 [2023-12-25 09:32:43,745 INFO L226 Difference]: Without dead ends: 488008 [2023-12-25 09:32:43,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 09:32:43,888 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 2474 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:32:43,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2474 Valid, 2340 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:32:44,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488008 states. [2023-12-25 09:32:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488008 to 352421. [2023-12-25 09:32:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352421 states, 352420 states have (on average 1.238093751773452) internal successors, (436329), 352420 states have internal predecessors, (436329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:49,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352421 states to 352421 states and 436329 transitions. [2023-12-25 09:32:49,260 INFO L78 Accepts]: Start accepts. Automaton has 352421 states and 436329 transitions. Word has length 121 [2023-12-25 09:32:49,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:32:49,261 INFO L495 AbstractCegarLoop]: Abstraction has 352421 states and 436329 transitions. [2023-12-25 09:32:49,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.25) internal successors, (228), 15 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 352421 states and 436329 transitions. [2023-12-25 09:32:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 09:32:49,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:32:49,274 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:32:49,280 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 (38)] Forceful destruction successful, exit code 0 [2023-12-25 09:32:49,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 [2023-12-25 09:32:49,475 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:32:49,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:32:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1892558910, now seen corresponding path program 1 times [2023-12-25 09:32:49,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:32:49,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331592077] [2023-12-25 09:32:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:32:49,476 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 [2023-12-25 09:32:49,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:32:49,477 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-25 09:32:49,477 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 (39)] Waiting until timeout for monitored process [2023-12-25 09:32:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:32:49,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:32:49,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:32:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:50,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:32:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:32:50,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:32:50,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331592077] [2023-12-25 09:32:50,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331592077] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:32:50,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:32:50,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:32:50,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885045817] [2023-12-25 09:32:50,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:32:50,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:32:50,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:32:50,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:32:50,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:32:50,619 INFO L87 Difference]: Start difference. First operand 352421 states and 436329 transitions. Second operand has 16 states, 16 states have (on average 13.75) internal successors, (220), 15 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:32:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:32:55,089 INFO L93 Difference]: Finished difference Result 915049 states and 1132087 transitions. [2023-12-25 09:32:55,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-25 09:32:55,090 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.75) internal successors, (220), 15 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-25 09:32:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:32:56,033 INFO L225 Difference]: With dead ends: 915049 [2023-12-25 09:32:56,033 INFO L226 Difference]: Without dead ends: 595447 [2023-12-25 09:32:56,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=354, Invalid=906, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 09:32:56,211 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 2216 mSDsluCounter, 2440 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:32:56,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 2815 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:32:56,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595447 states. [2023-12-25 09:33:01,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595447 to 424880. [2023-12-25 09:33:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424880 states, 424879 states have (on average 1.2372769659126481) internal successors, (525693), 424879 states have internal predecessors, (525693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424880 states to 424880 states and 525693 transitions. [2023-12-25 09:33:02,531 INFO L78 Accepts]: Start accepts. Automaton has 424880 states and 525693 transitions. Word has length 121 [2023-12-25 09:33:02,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:33:02,531 INFO L495 AbstractCegarLoop]: Abstraction has 424880 states and 525693 transitions. [2023-12-25 09:33:02,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.75) internal successors, (220), 15 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 424880 states and 525693 transitions. [2023-12-25 09:33:02,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 09:33:02,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:33:02,545 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:33:02,551 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 (39)] Ended with exit code 0 [2023-12-25 09:33:02,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 [2023-12-25 09:33:02,746 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:33:02,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:33:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1528847064, now seen corresponding path program 1 times [2023-12-25 09:33:02,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:33:02,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804475158] [2023-12-25 09:33:02,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:33:02,747 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 [2023-12-25 09:33:02,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:33:02,748 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-25 09:33:02,749 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 (40)] Waiting until timeout for monitored process [2023-12-25 09:33:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:33:03,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:33:03,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:33:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:33:03,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:33:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:33:04,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:33:04,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804475158] [2023-12-25 09:33:04,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804475158] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:33:04,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:33:04,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:33:04,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199629060] [2023-12-25 09:33:04,055 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:33:04,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:33:04,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:33:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:33:04,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:33:04,058 INFO L87 Difference]: Start difference. First operand 424880 states and 525693 transitions. Second operand has 16 states, 16 states have (on average 14.5) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:09,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:33:09,075 INFO L93 Difference]: Finished difference Result 1031045 states and 1272921 transitions. [2023-12-25 09:33:09,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-25 09:33:09,075 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.5) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-25 09:33:09,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:33:10,252 INFO L225 Difference]: With dead ends: 1031045 [2023-12-25 09:33:10,252 INFO L226 Difference]: Without dead ends: 641186 [2023-12-25 09:33:10,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 09:33:10,562 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 3228 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3228 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:33:10,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3228 Valid, 2425 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 09:33:11,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641186 states. [2023-12-25 09:33:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641186 to 487413. [2023-12-25 09:33:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487413 states, 487412 states have (on average 1.2336975700228965) internal successors, (601319), 487412 states have internal predecessors, (601319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487413 states to 487413 states and 601319 transitions. [2023-12-25 09:33:17,854 INFO L78 Accepts]: Start accepts. Automaton has 487413 states and 601319 transitions. Word has length 121 [2023-12-25 09:33:17,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:33:17,854 INFO L495 AbstractCegarLoop]: Abstraction has 487413 states and 601319 transitions. [2023-12-25 09:33:17,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.5) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 487413 states and 601319 transitions. [2023-12-25 09:33:17,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 09:33:17,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:33:17,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:33:17,874 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 (40)] Forceful destruction successful, exit code 0 [2023-12-25 09:33:18,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /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 [2023-12-25 09:33:18,071 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:33:18,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:33:18,071 INFO L85 PathProgramCache]: Analyzing trace with hash -907652991, now seen corresponding path program 1 times [2023-12-25 09:33:18,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:33:18,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716660900] [2023-12-25 09:33:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:33:18,072 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 [2023-12-25 09:33:18,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:33:18,073 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-25 09:33:18,073 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 (41)] Waiting until timeout for monitored process [2023-12-25 09:33:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:33:18,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:33:18,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:33:19,056 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:33:19,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:33:19,249 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:33:19,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:33:19,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716660900] [2023-12-25 09:33:19,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716660900] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:33:19,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:33:19,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:33:19,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426665853] [2023-12-25 09:33:19,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:33:19,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:33:19,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:33:19,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:33:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:33:19,250 INFO L87 Difference]: Start difference. First operand 487413 states and 601319 transitions. Second operand has 16 states, 16 states have (on average 14.0) internal successors, (224), 15 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:26,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:33:26,969 INFO L93 Difference]: Finished difference Result 1395677 states and 1717922 transitions. [2023-12-25 09:33:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-25 09:33:26,970 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.0) internal successors, (224), 15 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-25 09:33:26,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:33:28,874 INFO L225 Difference]: With dead ends: 1395677 [2023-12-25 09:33:28,874 INFO L226 Difference]: Without dead ends: 962781 [2023-12-25 09:33:29,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1090, Invalid=3602, Unknown=0, NotChecked=0, Total=4692 [2023-12-25 09:33:29,107 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 3627 mSDsluCounter, 3560 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 4062 SdHoareTripleChecker+Invalid, 2607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:33:29,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3627 Valid, 4062 Invalid, 2607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 09:33:29,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962781 states. [2023-12-25 09:33:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962781 to 537515. [2023-12-25 09:33:36,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537515 states, 537514 states have (on average 1.2324981302812579) internal successors, (662485), 537514 states have internal predecessors, (662485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:38,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537515 states to 537515 states and 662485 transitions. [2023-12-25 09:33:38,691 INFO L78 Accepts]: Start accepts. Automaton has 537515 states and 662485 transitions. Word has length 121 [2023-12-25 09:33:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:33:38,691 INFO L495 AbstractCegarLoop]: Abstraction has 537515 states and 662485 transitions. [2023-12-25 09:33:38,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.0) internal successors, (224), 15 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:38,692 INFO L276 IsEmpty]: Start isEmpty. Operand 537515 states and 662485 transitions. [2023-12-25 09:33:38,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 09:33:38,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:33:38,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:33:38,709 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 (41)] Ended with exit code 0 [2023-12-25 09:33:38,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /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 [2023-12-25 09:33:38,909 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:33:38,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:33:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1480288392, now seen corresponding path program 1 times [2023-12-25 09:33:38,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:33:38,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883189499] [2023-12-25 09:33:38,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:33:38,910 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 [2023-12-25 09:33:38,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:33:38,911 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-25 09:33:38,915 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 (42)] Waiting until timeout for monitored process [2023-12-25 09:33:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:33:39,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:33:39,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:33:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:33:39,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:33:39,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:33:39,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883189499] [2023-12-25 09:33:39,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883189499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:33:39,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:33:39,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:33:39,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096140582] [2023-12-25 09:33:39,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:33:39,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:33:39,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:33:39,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:33:39,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:33:39,291 INFO L87 Difference]: Start difference. First operand 537515 states and 662485 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:33:42,906 INFO L93 Difference]: Finished difference Result 1056231 states and 1304489 transitions. [2023-12-25 09:33:42,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:33:42,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-12-25 09:33:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:33:44,098 INFO L225 Difference]: With dead ends: 1056231 [2023-12-25 09:33:44,098 INFO L226 Difference]: Without dead ends: 519405 [2023-12-25 09:33:44,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:33:44,740 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 198 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:33:44,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 566 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:33:45,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519405 states. [2023-12-25 09:33:49,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519405 to 498291. [2023-12-25 09:33:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498291 states, 498290 states have (on average 1.2217523931846916) internal successors, (608787), 498290 states have internal predecessors, (608787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:51,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498291 states to 498291 states and 608787 transitions. [2023-12-25 09:33:51,562 INFO L78 Accepts]: Start accepts. Automaton has 498291 states and 608787 transitions. Word has length 122 [2023-12-25 09:33:51,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:33:51,562 INFO L495 AbstractCegarLoop]: Abstraction has 498291 states and 608787 transitions. [2023-12-25 09:33:51,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand 498291 states and 608787 transitions. [2023-12-25 09:33:51,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 09:33:51,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:33:51,573 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:33:51,582 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 (42)] Forceful destruction successful, exit code 0 [2023-12-25 09:33:51,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /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 [2023-12-25 09:33:51,779 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:33:51,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:33:51,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1654133409, now seen corresponding path program 1 times [2023-12-25 09:33:51,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:33:51,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067793650] [2023-12-25 09:33:51,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:33:51,781 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 [2023-12-25 09:33:51,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:33:51,782 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-25 09:33:51,816 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 (43)] Waiting until timeout for monitored process [2023-12-25 09:33:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:33:52,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:33:52,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:33:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-25 09:33:52,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:33:52,413 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-25 09:33:52,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:33:52,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067793650] [2023-12-25 09:33:52,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067793650] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:33:52,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:33:52,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-25 09:33:52,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141375390] [2023-12-25 09:33:52,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:33:52,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:33:52,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:33:52,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:33:52,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:33:52,414 INFO L87 Difference]: Start difference. First operand 498291 states and 608787 transitions. Second operand has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:33:57,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:33:57,743 INFO L93 Difference]: Finished difference Result 1599913 states and 1956057 transitions. [2023-12-25 09:33:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:33:57,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-12-25 09:33:57,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:33:59,893 INFO L225 Difference]: With dead ends: 1599913 [2023-12-25 09:33:59,894 INFO L226 Difference]: Without dead ends: 1184449 [2023-12-25 09:34:00,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:34:00,105 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 417 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:34:00,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1600 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:34:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184449 states. [2023-12-25 09:34:12,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184449 to 1184443. [2023-12-25 09:34:13,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184443 states, 1184442 states have (on average 1.2041003274115576) internal successors, (1426187), 1184442 states have internal predecessors, (1426187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:34:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184443 states to 1184443 states and 1426187 transitions. [2023-12-25 09:34:18,572 INFO L78 Accepts]: Start accepts. Automaton has 1184443 states and 1426187 transitions. Word has length 122 [2023-12-25 09:34:18,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:34:18,573 INFO L495 AbstractCegarLoop]: Abstraction has 1184443 states and 1426187 transitions. [2023-12-25 09:34:18,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 09:34:18,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1184443 states and 1426187 transitions. [2023-12-25 09:34:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 09:34:18,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:34:18,587 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:34:18,593 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 (43)] Forceful destruction successful, exit code 0 [2023-12-25 09:34:18,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /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 [2023-12-25 09:34:18,795 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-25 09:34:18,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:34:18,796 INFO L85 PathProgramCache]: Analyzing trace with hash 126572744, now seen corresponding path program 1 times [2023-12-25 09:34:18,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:34:18,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354942154] [2023-12-25 09:34:18,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:34:18,797 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 [2023-12-25 09:34:18,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:34:18,798 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-25 09:34:18,824 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 (44)] Waiting until timeout for monitored process [2023-12-25 09:34:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:34:19,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:34:19,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:34:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:34:19,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:34:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:34:19,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:34:19,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354942154] [2023-12-25 09:34:19,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354942154] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:34:19,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:34:19,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:34:19,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177393351] [2023-12-25 09:34:19,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:34:19,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:34:19,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:34:19,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:34:19,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:34:19,395 INFO L87 Difference]: Start difference. First operand 1184443 states and 1426187 transitions. Second operand has 9 states, 9 states have (on average 25.11111111111111) internal successors, (226), 9 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)