/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 13:27:14,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 13:27:14,320 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 13:27:14,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 13:27:14,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 13:27:14,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 13:27:14,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 13:27:14,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 13:27:14,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 13:27:14,351 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 13:27:14,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 13:27:14,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 13:27:14,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 13:27:14,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 13:27:14,353 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 13:27:14,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 13:27:14,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 13:27:14,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 13:27:14,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 13:27:14,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 13:27:14,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 13:27:14,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 13:27:14,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 13:27:14,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 13:27:14,354 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 13:27:14,354 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 13:27:14,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 13:27:14,355 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 13:27:14,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 13:27:14,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 13:27:14,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 13:27:14,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 13:27:14,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:27:14,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 13:27:14,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 13:27:14,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 13:27:14,357 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 13:27:14,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 13:27:14,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 13:27:14,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 13:27:14,357 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 13:27:14,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 13:27:14,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 13:27:14,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 13:27:14,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 13:27:14,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 13:27:14,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 13:27:14,597 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 13:27:14,598 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 13:27:14,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-21 13:27:15,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 13:27:16,052 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 13:27:16,052 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-21 13:27:16,081 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00839b579/10e49d958a9d45349ddeb11434d9fe20/FLAG956528d14 [2023-12-21 13:27:16,094 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00839b579/10e49d958a9d45349ddeb11434d9fe20 [2023-12-21 13:27:16,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 13:27:16,097 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 13:27:16,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 13:27:16,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 13:27:16,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 13:27:16,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:27:16" (1/1) ... [2023-12-21 13:27:16,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a42905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:16, skipping insertion in model container [2023-12-21 13:27:16,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:27:16" (1/1) ... [2023-12-21 13:27:16,231 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 13:27:16,615 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[28933,28946] [2023-12-21 13:27:16,686 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[50969,50982] [2023-12-21 13:27:16,723 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58695,58708] [2023-12-21 13:27:16,797 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83802,83815] [2023-12-21 13:27:16,843 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98975,98988] [2023-12-21 13:27:16,870 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115686,115699] [2023-12-21 13:27:16,896 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132053,132066] [2023-12-21 13:27:17,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:27:17,037 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 13:27:17,105 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[28933,28946] [2023-12-21 13:27:17,137 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[50969,50982] [2023-12-21 13:27:17,147 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58695,58708] [2023-12-21 13:27:17,176 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83802,83815] [2023-12-21 13:27:17,194 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98975,98988] [2023-12-21 13:27:17,212 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115686,115699] [2023-12-21 13:27:17,230 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.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132053,132066] [2023-12-21 13:27:17,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:27:17,342 INFO L206 MainTranslator]: Completed translation [2023-12-21 13:27:17,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17 WrapperNode [2023-12-21 13:27:17,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 13:27:17,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 13:27:17,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 13:27:17,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 13:27:17,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,535 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9841 [2023-12-21 13:27:17,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 13:27:17,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 13:27:17,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 13:27:17,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 13:27:17,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,630 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]. [2023-12-21 13:27:17,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 13:27:17,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 13:27:17,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 13:27:17,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 13:27:17,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (1/1) ... [2023-12-21 13:27:17,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:27:17,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:27:17,993 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) [2023-12-21 13:27:18,007 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 [2023-12-21 13:27:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 13:27:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 13:27:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 13:27:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 13:27:18,246 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 13:27:18,248 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 13:27:21,232 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 13:27:21,298 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 13:27:21,298 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 13:27:21,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:27:21 BoogieIcfgContainer [2023-12-21 13:27:21,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 13:27:21,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 13:27:21,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 13:27:21,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 13:27:21,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:27:16" (1/3) ... [2023-12-21 13:27:21,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567ce6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:27:21, skipping insertion in model container [2023-12-21 13:27:21,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:27:17" (2/3) ... [2023-12-21 13:27:21,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567ce6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:27:21, skipping insertion in model container [2023-12-21 13:27:21,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:27:21" (3/3) ... [2023-12-21 13:27:21,304 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-21 13:27:21,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 13:27:21,315 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-21 13:27:21,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 13:27:21,367 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;@56c65d76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 13:27:21,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-21 13:27:21,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 2027 states, 2019 states have (on average 1.799405646359584) internal successors, (3633), 2026 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-21 13:27:21,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:21,393 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] [2023-12-21 13:27:21,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:21,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:21,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1031762117, now seen corresponding path program 1 times [2023-12-21 13:27:21,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:21,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497724062] [2023-12-21 13:27:21,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:21,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:21,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:21,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:21,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497724062] [2023-12-21 13:27:21,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497724062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:21,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:21,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:27:21,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118770258] [2023-12-21 13:27:21,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:21,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:27:21,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:21,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:27:21,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:27:21,759 INFO L87 Difference]: Start difference. First operand has 2027 states, 2019 states have (on average 1.799405646359584) internal successors, (3633), 2026 states have internal predecessors, (3633), 0 states have call successors, (0), 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) [2023-12-21 13:27:23,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:23,153 INFO L93 Difference]: Finished difference Result 3323 states and 5848 transitions. [2023-12-21 13:27:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:27:23,155 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 [2023-12-21 13:27:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:23,172 INFO L225 Difference]: With dead ends: 3323 [2023-12-21 13:27:23,172 INFO L226 Difference]: Without dead ends: 2130 [2023-12-21 13:27:23,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:27:23,180 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 10321 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10321 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:23,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10321 Valid, 2189 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 13:27:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2023-12-21 13:27:23,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2117. [2023-12-21 13:27:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2110 states have (on average 1.3483412322274881) internal successors, (2845), 2116 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2845 transitions. [2023-12-21 13:27:23,263 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2845 transitions. Word has length 63 [2023-12-21 13:27:23,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:23,264 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 2845 transitions. [2023-12-21 13:27:23,264 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) [2023-12-21 13:27:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2845 transitions. [2023-12-21 13:27:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-21 13:27:23,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:23,268 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] [2023-12-21 13:27:23,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 13:27:23,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:23,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:23,269 INFO L85 PathProgramCache]: Analyzing trace with hash 505276640, now seen corresponding path program 1 times [2023-12-21 13:27:23,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:23,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576397831] [2023-12-21 13:27:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:23,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:23,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:23,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576397831] [2023-12-21 13:27:23,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576397831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:23,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:23,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:27:23,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014625104] [2023-12-21 13:27:23,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:23,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:27:23,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:23,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:27:23,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:27:23,391 INFO L87 Difference]: Start difference. First operand 2117 states and 2845 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) [2023-12-21 13:27:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:24,731 INFO L93 Difference]: Finished difference Result 4336 states and 5920 transitions. [2023-12-21 13:27:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:27:24,731 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 [2023-12-21 13:27:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:24,739 INFO L225 Difference]: With dead ends: 4336 [2023-12-21 13:27:24,739 INFO L226 Difference]: Without dead ends: 2922 [2023-12-21 13:27:24,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:27:24,743 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 8048 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8048 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:24,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8048 Valid, 1458 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 13:27:24,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2023-12-21 13:27:24,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2916. [2023-12-21 13:27:24,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2909 states have (on average 1.3547610862839463) internal successors, (3941), 2915 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:24,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 3941 transitions. [2023-12-21 13:27:24,792 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 3941 transitions. Word has length 64 [2023-12-21 13:27:24,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:24,792 INFO L495 AbstractCegarLoop]: Abstraction has 2916 states and 3941 transitions. [2023-12-21 13:27:24,792 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) [2023-12-21 13:27:24,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 3941 transitions. [2023-12-21 13:27:24,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-21 13:27:24,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:24,796 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] [2023-12-21 13:27:24,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 13:27:24,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:24,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:24,797 INFO L85 PathProgramCache]: Analyzing trace with hash 285379470, now seen corresponding path program 1 times [2023-12-21 13:27:24,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:24,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176164839] [2023-12-21 13:27:24,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:24,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:24,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:24,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176164839] [2023-12-21 13:27:24,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176164839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:24,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:24,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:27:24,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377146584] [2023-12-21 13:27:24,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:24,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:27:24,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:24,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:27:24,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:27:24,893 INFO L87 Difference]: Start difference. First operand 2916 states and 3941 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) [2023-12-21 13:27:26,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:26,053 INFO L93 Difference]: Finished difference Result 6143 states and 8390 transitions. [2023-12-21 13:27:26,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:27:26,054 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 [2023-12-21 13:27:26,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:26,067 INFO L225 Difference]: With dead ends: 6143 [2023-12-21 13:27:26,071 INFO L226 Difference]: Without dead ends: 4032 [2023-12-21 13:27:26,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:27:26,078 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 7612 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7612 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:26,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7612 Valid, 1432 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 13:27:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2023-12-21 13:27:26,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 4018. [2023-12-21 13:27:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 4011 states have (on average 1.350536025928696) internal successors, (5417), 4017 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5417 transitions. [2023-12-21 13:27:26,147 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5417 transitions. Word has length 64 [2023-12-21 13:27:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:26,149 INFO L495 AbstractCegarLoop]: Abstraction has 4018 states and 5417 transitions. [2023-12-21 13:27:26,149 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) [2023-12-21 13:27:26,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5417 transitions. [2023-12-21 13:27:26,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-21 13:27:26,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:26,154 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] [2023-12-21 13:27:26,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 13:27:26,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:26,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:26,155 INFO L85 PathProgramCache]: Analyzing trace with hash -874930976, now seen corresponding path program 1 times [2023-12-21 13:27:26,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:26,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870453026] [2023-12-21 13:27:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:26,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:26,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:26,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870453026] [2023-12-21 13:27:26,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870453026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:26,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:26,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:27:26,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55387233] [2023-12-21 13:27:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:26,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:27:26,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:27:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:27:26,495 INFO L87 Difference]: Start difference. First operand 4018 states and 5417 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 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) [2023-12-21 13:27:28,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:28,624 INFO L93 Difference]: Finished difference Result 4766 states and 6472 transitions. [2023-12-21 13:27:28,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:27:28,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 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 [2023-12-21 13:27:28,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:28,655 INFO L225 Difference]: With dead ends: 4766 [2023-12-21 13:27:28,656 INFO L226 Difference]: Without dead ends: 4761 [2023-12-21 13:27:28,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:27:28,659 INFO L413 NwaCegarLoop]: 1088 mSDtfsCounter, 6791 mSDsluCounter, 4176 mSDsCounter, 0 mSdLazyCounter, 5078 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6791 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 5102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:28,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6791 Valid, 5264 Invalid, 5102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 5078 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 13:27:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2023-12-21 13:27:28,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 4018. [2023-12-21 13:27:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 4011 states have (on average 1.350286711543256) internal successors, (5416), 4017 states have internal predecessors, (5416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5416 transitions. [2023-12-21 13:27:28,771 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5416 transitions. Word has length 65 [2023-12-21 13:27:28,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:28,773 INFO L495 AbstractCegarLoop]: Abstraction has 4018 states and 5416 transitions. [2023-12-21 13:27:28,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 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) [2023-12-21 13:27:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5416 transitions. [2023-12-21 13:27:28,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-21 13:27:28,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:28,777 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] [2023-12-21 13:27:28,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 13:27:28,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:28,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:28,778 INFO L85 PathProgramCache]: Analyzing trace with hash -428617911, now seen corresponding path program 1 times [2023-12-21 13:27:28,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:28,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994689687] [2023-12-21 13:27:28,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:28,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:29,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:29,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994689687] [2023-12-21 13:27:29,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994689687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:29,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:29,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:27:29,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081029535] [2023-12-21 13:27:29,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:29,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:27:29,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:29,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:27:29,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:27:29,132 INFO L87 Difference]: Start difference. First operand 4018 states and 5416 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2023-12-21 13:27:31,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:31,990 INFO L93 Difference]: Finished difference Result 8089 states and 11475 transitions. [2023-12-21 13:27:31,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 13:27:31,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2023-12-21 13:27:31,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:32,010 INFO L225 Difference]: With dead ends: 8089 [2023-12-21 13:27:32,011 INFO L226 Difference]: Without dead ends: 7272 [2023-12-21 13:27:32,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2023-12-21 13:27:32,017 INFO L413 NwaCegarLoop]: 1173 mSDtfsCounter, 7813 mSDsluCounter, 5998 mSDsCounter, 0 mSdLazyCounter, 7214 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7813 SdHoareTripleChecker+Valid, 7171 SdHoareTripleChecker+Invalid, 7221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:32,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7813 Valid, 7171 Invalid, 7221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7214 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 13:27:32,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2023-12-21 13:27:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 4025. [2023-12-21 13:27:32,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4025 states, 4018 states have (on average 1.349676455948233) internal successors, (5423), 4024 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:32,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 5423 transitions. [2023-12-21 13:27:32,127 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 5423 transitions. Word has length 65 [2023-12-21 13:27:32,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:32,127 INFO L495 AbstractCegarLoop]: Abstraction has 4025 states and 5423 transitions. [2023-12-21 13:27:32,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2023-12-21 13:27:32,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 5423 transitions. [2023-12-21 13:27:32,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 13:27:32,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:32,133 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] [2023-12-21 13:27:32,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 13:27:32,133 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:32,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2016295323, now seen corresponding path program 1 times [2023-12-21 13:27:32,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:32,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846484376] [2023-12-21 13:27:32,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:32,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:32,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:32,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846484376] [2023-12-21 13:27:32,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846484376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:32,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:32,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:27:32,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960753518] [2023-12-21 13:27:32,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:32,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:27:32,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:32,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:27:32,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:27:32,669 INFO L87 Difference]: Start difference. First operand 4025 states and 5423 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 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) [2023-12-21 13:27:35,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:35,613 INFO L93 Difference]: Finished difference Result 15765 states and 23127 transitions. [2023-12-21 13:27:35,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-21 13:27:35,614 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 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 [2023-12-21 13:27:35,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:35,645 INFO L225 Difference]: With dead ends: 15765 [2023-12-21 13:27:35,646 INFO L226 Difference]: Without dead ends: 15757 [2023-12-21 13:27:35,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=319, Invalid=1241, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:27:35,650 INFO L413 NwaCegarLoop]: 2318 mSDtfsCounter, 15535 mSDsluCounter, 16965 mSDsCounter, 0 mSdLazyCounter, 3706 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15535 SdHoareTripleChecker+Valid, 19283 SdHoareTripleChecker+Invalid, 3731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:35,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15535 Valid, 19283 Invalid, 3731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3706 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 13:27:35,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15757 states. [2023-12-21 13:27:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15757 to 4017. [2023-12-21 13:27:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4017 states, 4011 states have (on average 1.350037397157816) internal successors, (5415), 4016 states have internal predecessors, (5415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4017 states to 4017 states and 5415 transitions. [2023-12-21 13:27:35,782 INFO L78 Accepts]: Start accepts. Automaton has 4017 states and 5415 transitions. Word has length 66 [2023-12-21 13:27:35,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:35,783 INFO L495 AbstractCegarLoop]: Abstraction has 4017 states and 5415 transitions. [2023-12-21 13:27:35,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 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) [2023-12-21 13:27:35,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4017 states and 5415 transitions. [2023-12-21 13:27:35,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 13:27:35,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:35,788 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] [2023-12-21 13:27:35,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 13:27:35,789 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:35,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:35,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1740752215, now seen corresponding path program 1 times [2023-12-21 13:27:35,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:35,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410901611] [2023-12-21 13:27:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:35,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:35,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410901611] [2023-12-21 13:27:35,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410901611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:35,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:35,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:27:35,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307707445] [2023-12-21 13:27:35,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:35,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:27:35,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:35,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:27:35,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:27:35,877 INFO L87 Difference]: Start difference. First operand 4017 states and 5415 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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) [2023-12-21 13:27:36,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:36,602 INFO L93 Difference]: Finished difference Result 7917 states and 10741 transitions. [2023-12-21 13:27:36,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:27:36,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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 [2023-12-21 13:27:36,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:36,610 INFO L225 Difference]: With dead ends: 7917 [2023-12-21 13:27:36,611 INFO L226 Difference]: Without dead ends: 5301 [2023-12-21 13:27:36,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:27:36,615 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 6534 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6534 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:36,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6534 Valid, 1239 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:27:36,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2023-12-21 13:27:36,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5291. [2023-12-21 13:27:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5285 states have (on average 1.3538315988647114) internal successors, (7155), 5290 states have internal predecessors, (7155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 7155 transitions. [2023-12-21 13:27:36,681 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 7155 transitions. Word has length 66 [2023-12-21 13:27:36,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:36,681 INFO L495 AbstractCegarLoop]: Abstraction has 5291 states and 7155 transitions. [2023-12-21 13:27:36,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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) [2023-12-21 13:27:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 7155 transitions. [2023-12-21 13:27:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 13:27:36,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:36,686 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] [2023-12-21 13:27:36,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 13:27:36,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:36,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:36,687 INFO L85 PathProgramCache]: Analyzing trace with hash -167816723, now seen corresponding path program 1 times [2023-12-21 13:27:36,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:36,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618047770] [2023-12-21 13:27:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:36,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:37,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:37,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618047770] [2023-12-21 13:27:37,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618047770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:37,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:37,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:27:37,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356446630] [2023-12-21 13:27:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:37,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:27:37,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:37,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:27:37,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:27:37,085 INFO L87 Difference]: Start difference. First operand 5291 states and 7155 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 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) [2023-12-21 13:27:39,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:39,591 INFO L93 Difference]: Finished difference Result 21513 states and 31612 transitions. [2023-12-21 13:27:39,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-21 13:27:39,591 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 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 [2023-12-21 13:27:39,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:39,623 INFO L225 Difference]: With dead ends: 21513 [2023-12-21 13:27:39,623 INFO L226 Difference]: Without dead ends: 20191 [2023-12-21 13:27:39,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=328, Invalid=1232, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:27:39,634 INFO L413 NwaCegarLoop]: 1964 mSDtfsCounter, 17637 mSDsluCounter, 12967 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17637 SdHoareTripleChecker+Valid, 14931 SdHoareTripleChecker+Invalid, 2735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:39,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17637 Valid, 14931 Invalid, 2735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 13:27:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20191 states. [2023-12-21 13:27:39,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20191 to 5203. [2023-12-21 13:27:39,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5198 states have (on average 1.3512889572912659) internal successors, (7024), 5202 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:39,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 7024 transitions. [2023-12-21 13:27:39,787 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 7024 transitions. Word has length 66 [2023-12-21 13:27:39,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:39,788 INFO L495 AbstractCegarLoop]: Abstraction has 5203 states and 7024 transitions. [2023-12-21 13:27:39,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 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) [2023-12-21 13:27:39,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 7024 transitions. [2023-12-21 13:27:39,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-21 13:27:39,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:39,793 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] [2023-12-21 13:27:39,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 13:27:39,793 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)] === [2023-12-21 13:27:39,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:39,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1849785436, now seen corresponding path program 1 times [2023-12-21 13:27:39,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:39,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383883153] [2023-12-21 13:27:39,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:39,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:40,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:40,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383883153] [2023-12-21 13:27:40,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383883153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:40,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:40,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:27:40,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664048568] [2023-12-21 13:27:40,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:40,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:27:40,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:40,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:27:40,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:27:40,007 INFO L87 Difference]: Start difference. First operand 5203 states and 7024 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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) [2023-12-21 13:27:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:43,006 INFO L93 Difference]: Finished difference Result 11756 states and 16835 transitions. [2023-12-21 13:27:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:27:43,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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 [2023-12-21 13:27:43,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:43,019 INFO L225 Difference]: With dead ends: 11756 [2023-12-21 13:27:43,020 INFO L226 Difference]: Without dead ends: 10471 [2023-12-21 13:27:43,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:27:43,024 INFO L413 NwaCegarLoop]: 1148 mSDtfsCounter, 7411 mSDsluCounter, 4969 mSDsCounter, 0 mSdLazyCounter, 5528 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7411 SdHoareTripleChecker+Valid, 6117 SdHoareTripleChecker+Invalid, 5557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 5528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:43,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7411 Valid, 6117 Invalid, 5557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 5528 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 13:27:43,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2023-12-21 13:27:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 5156. [2023-12-21 13:27:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5151 states have (on average 1.3504173946806446) internal successors, (6956), 5155 states have internal predecessors, (6956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 6956 transitions. [2023-12-21 13:27:43,129 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 6956 transitions. Word has length 67 [2023-12-21 13:27:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:43,130 INFO L495 AbstractCegarLoop]: Abstraction has 5156 states and 6956 transitions. [2023-12-21 13:27:43,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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) [2023-12-21 13:27:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 6956 transitions. [2023-12-21 13:27:43,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-21 13:27:43,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:43,136 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] [2023-12-21 13:27:43,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 13:27:43,136 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:43,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:43,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2035786332, now seen corresponding path program 1 times [2023-12-21 13:27:43,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:43,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311895385] [2023-12-21 13:27:43,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:43,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:43,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:43,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:43,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311895385] [2023-12-21 13:27:43,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311895385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:43,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:43,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:27:43,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096649485] [2023-12-21 13:27:43,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:43,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:27:43,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:43,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:27:43,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:27:43,354 INFO L87 Difference]: Start difference. First operand 5156 states and 6956 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) [2023-12-21 13:27:45,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:45,371 INFO L93 Difference]: Finished difference Result 7760 states and 10640 transitions. [2023-12-21 13:27:45,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:27:45,372 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 [2023-12-21 13:27:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:45,383 INFO L225 Difference]: With dead ends: 7760 [2023-12-21 13:27:45,383 INFO L226 Difference]: Without dead ends: 7752 [2023-12-21 13:27:45,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:27:45,386 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 5574 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 4617 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5574 SdHoareTripleChecker+Valid, 4757 SdHoareTripleChecker+Invalid, 4648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 4617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:45,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5574 Valid, 4757 Invalid, 4648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 4617 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 13:27:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7752 states. [2023-12-21 13:27:45,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7752 to 5156. [2023-12-21 13:27:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5151 states have (on average 1.3502232576198796) internal successors, (6955), 5155 states have internal predecessors, (6955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 6955 transitions. [2023-12-21 13:27:45,468 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 6955 transitions. Word has length 68 [2023-12-21 13:27:45,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:45,468 INFO L495 AbstractCegarLoop]: Abstraction has 5156 states and 6955 transitions. [2023-12-21 13:27:45,468 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) [2023-12-21 13:27:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 6955 transitions. [2023-12-21 13:27:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-21 13:27:45,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:45,473 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] [2023-12-21 13:27:45,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 13:27:45,474 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:45,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:45,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1784891832, now seen corresponding path program 1 times [2023-12-21 13:27:45,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:45,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876413081] [2023-12-21 13:27:45,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:45,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:45,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:45,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:45,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876413081] [2023-12-21 13:27:45,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876413081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:45,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:45,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:27:45,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215123123] [2023-12-21 13:27:45,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:45,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:27:45,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:45,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:27:45,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:27:45,908 INFO L87 Difference]: Start difference. First operand 5156 states and 6955 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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) [2023-12-21 13:27:48,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:48,796 INFO L93 Difference]: Finished difference Result 18358 states and 26650 transitions. [2023-12-21 13:27:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 13:27:48,797 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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 [2023-12-21 13:27:48,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:48,818 INFO L225 Difference]: With dead ends: 18358 [2023-12-21 13:27:48,818 INFO L226 Difference]: Without dead ends: 17070 [2023-12-21 13:27:48,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=324, Invalid=866, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 13:27:48,827 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 10769 mSDsluCounter, 11858 mSDsCounter, 0 mSdLazyCounter, 2639 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10769 SdHoareTripleChecker+Valid, 13704 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:48,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10769 Valid, 13704 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2639 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:27:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17070 states. [2023-12-21 13:27:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17070 to 5166. [2023-12-21 13:27:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5161 states have (on average 1.350125944584383) internal successors, (6968), 5165 states have internal predecessors, (6968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 6968 transitions. [2023-12-21 13:27:48,957 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 6968 transitions. Word has length 68 [2023-12-21 13:27:48,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:48,957 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 6968 transitions. [2023-12-21 13:27:48,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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) [2023-12-21 13:27:48,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 6968 transitions. [2023-12-21 13:27:48,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-21 13:27:48,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:48,964 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] [2023-12-21 13:27:48,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 13:27:48,965 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:48,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:48,965 INFO L85 PathProgramCache]: Analyzing trace with hash -541441223, now seen corresponding path program 1 times [2023-12-21 13:27:48,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:48,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235366021] [2023-12-21 13:27:48,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:49,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:49,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235366021] [2023-12-21 13:27:49,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235366021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:49,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:49,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:27:49,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858015189] [2023-12-21 13:27:49,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:49,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:27:49,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:49,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:27:49,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:27:49,133 INFO L87 Difference]: Start difference. First operand 5166 states and 6968 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 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) [2023-12-21 13:27:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:50,908 INFO L93 Difference]: Finished difference Result 9520 states and 13495 transitions. [2023-12-21 13:27:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:27:50,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 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 [2023-12-21 13:27:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:50,916 INFO L225 Difference]: With dead ends: 9520 [2023-12-21 13:27:50,916 INFO L226 Difference]: Without dead ends: 8278 [2023-12-21 13:27:50,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:27:50,923 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 6973 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 3820 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6973 SdHoareTripleChecker+Valid, 4113 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:50,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6973 Valid, 4113 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3820 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 13:27:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8278 states. [2023-12-21 13:27:51,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8278 to 5166. [2023-12-21 13:27:51,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5161 states have (on average 1.3497384227862816) internal successors, (6966), 5165 states have internal predecessors, (6966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:51,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 6966 transitions. [2023-12-21 13:27:51,024 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 6966 transitions. Word has length 69 [2023-12-21 13:27:51,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:51,024 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 6966 transitions. [2023-12-21 13:27:51,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 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) [2023-12-21 13:27:51,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 6966 transitions. [2023-12-21 13:27:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-21 13:27:51,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:51,030 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] [2023-12-21 13:27:51,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 13:27:51,030 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:51,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash -463393113, now seen corresponding path program 1 times [2023-12-21 13:27:51,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:51,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176297492] [2023-12-21 13:27:51,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:51,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:51,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:51,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:51,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176297492] [2023-12-21 13:27:51,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176297492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:51,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:51,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:27:51,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654763700] [2023-12-21 13:27:51,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:51,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:27:51,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:51,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:27:51,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:27:51,532 INFO L87 Difference]: Start difference. First operand 5166 states and 6966 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) 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) [2023-12-21 13:27:54,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:54,481 INFO L93 Difference]: Finished difference Result 20614 states and 30252 transitions. [2023-12-21 13:27:54,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-21 13:27:54,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) 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 [2023-12-21 13:27:54,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:54,501 INFO L225 Difference]: With dead ends: 20614 [2023-12-21 13:27:54,501 INFO L226 Difference]: Without dead ends: 20603 [2023-12-21 13:27:54,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=345, Invalid=1215, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:27:54,506 INFO L413 NwaCegarLoop]: 1974 mSDtfsCounter, 17877 mSDsluCounter, 12194 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17877 SdHoareTripleChecker+Valid, 14168 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:54,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17877 Valid, 14168 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 13:27:54,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2023-12-21 13:27:54,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 5160. [2023-12-21 13:27:54,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5160 states, 5155 states have (on average 1.3499515033947624) internal successors, (6959), 5159 states have internal predecessors, (6959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:54,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5160 states to 5160 states and 6959 transitions. [2023-12-21 13:27:54,635 INFO L78 Accepts]: Start accepts. Automaton has 5160 states and 6959 transitions. Word has length 69 [2023-12-21 13:27:54,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:54,636 INFO L495 AbstractCegarLoop]: Abstraction has 5160 states and 6959 transitions. [2023-12-21 13:27:54,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) 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) [2023-12-21 13:27:54,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5160 states and 6959 transitions. [2023-12-21 13:27:54,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-21 13:27:54,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:54,641 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, 1] [2023-12-21 13:27:54,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 13:27:54,642 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:54,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:54,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1882503663, now seen corresponding path program 1 times [2023-12-21 13:27:54,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:54,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145795509] [2023-12-21 13:27:54,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:54,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:54,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:54,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145795509] [2023-12-21 13:27:54,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145795509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:54,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:54,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:27:54,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581971925] [2023-12-21 13:27:54,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:54,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:27:54,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:54,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:27:54,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:27:54,680 INFO L87 Difference]: Start difference. First operand 5160 states and 6959 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) [2023-12-21 13:27:54,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:54,845 INFO L93 Difference]: Finished difference Result 10183 states and 13912 transitions. [2023-12-21 13:27:54,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:27:54,845 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 [2023-12-21 13:27:54,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:54,851 INFO L225 Difference]: With dead ends: 10183 [2023-12-21 13:27:54,852 INFO L226 Difference]: Without dead ends: 6211 [2023-12-21 13:27:54,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:27:54,857 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 1556 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:54,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 2117 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:27:54,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6211 states. [2023-12-21 13:27:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6211 to 6201. [2023-12-21 13:27:54,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6201 states, 6197 states have (on average 1.3517831208649347) internal successors, (8377), 6200 states have internal predecessors, (8377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6201 states to 6201 states and 8377 transitions. [2023-12-21 13:27:54,927 INFO L78 Accepts]: Start accepts. Automaton has 6201 states and 8377 transitions. Word has length 69 [2023-12-21 13:27:54,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:54,927 INFO L495 AbstractCegarLoop]: Abstraction has 6201 states and 8377 transitions. [2023-12-21 13:27:54,928 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) [2023-12-21 13:27:54,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6201 states and 8377 transitions. [2023-12-21 13:27:54,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-21 13:27:54,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:54,933 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] [2023-12-21 13:27:54,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 13:27:54,934 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:54,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:54,934 INFO L85 PathProgramCache]: Analyzing trace with hash 594946586, now seen corresponding path program 1 times [2023-12-21 13:27:54,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:54,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427297356] [2023-12-21 13:27:54,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:54,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:54,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:54,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427297356] [2023-12-21 13:27:54,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427297356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:54,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:54,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:27:54,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931452344] [2023-12-21 13:27:54,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:54,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:27:54,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:27:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:27:54,973 INFO L87 Difference]: Start difference. First operand 6201 states and 8377 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) [2023-12-21 13:27:55,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:55,068 INFO L93 Difference]: Finished difference Result 9978 states and 13919 transitions. [2023-12-21 13:27:55,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:27:55,069 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 [2023-12-21 13:27:55,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:55,075 INFO L225 Difference]: With dead ends: 9978 [2023-12-21 13:27:55,075 INFO L226 Difference]: Without dead ends: 5960 [2023-12-21 13:27:55,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:27:55,081 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 1200 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:55,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1728 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:27:55,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2023-12-21 13:27:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 5956. [2023-12-21 13:27:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5954 states have (on average 1.3846153846153846) internal successors, (8244), 5955 states have internal predecessors, (8244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:55,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 8244 transitions. [2023-12-21 13:27:55,139 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 8244 transitions. Word has length 69 [2023-12-21 13:27:55,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:55,139 INFO L495 AbstractCegarLoop]: Abstraction has 5956 states and 8244 transitions. [2023-12-21 13:27:55,139 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) [2023-12-21 13:27:55,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 8244 transitions. [2023-12-21 13:27:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-21 13:27:55,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:55,147 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] [2023-12-21 13:27:55,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:27:55,148 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:55,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:55,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1302640947, now seen corresponding path program 1 times [2023-12-21 13:27:55,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:55,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421967875] [2023-12-21 13:27:55,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:55,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:55,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:55,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:55,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421967875] [2023-12-21 13:27:55,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421967875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:55,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:55,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 13:27:55,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489155291] [2023-12-21 13:27:55,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:55,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:27:55,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:55,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:27:55,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:27:55,431 INFO L87 Difference]: Start difference. First operand 5956 states and 8244 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:57,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:57,344 INFO L93 Difference]: Finished difference Result 11698 states and 16902 transitions. [2023-12-21 13:27:57,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:27:57,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2023-12-21 13:27:57,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:57,353 INFO L225 Difference]: With dead ends: 11698 [2023-12-21 13:27:57,353 INFO L226 Difference]: Without dead ends: 9018 [2023-12-21 13:27:57,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:27:57,358 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 5929 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 4207 SdHoareTripleChecker+Invalid, 3968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:57,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5929 Valid, 4207 Invalid, 3968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:27:57,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9018 states. [2023-12-21 13:27:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9018 to 5964. [2023-12-21 13:27:57,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5964 states, 5962 states have (on average 1.384770211338477) internal successors, (8256), 5963 states have internal predecessors, (8256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5964 states to 5964 states and 8256 transitions. [2023-12-21 13:27:57,458 INFO L78 Accepts]: Start accepts. Automaton has 5964 states and 8256 transitions. Word has length 70 [2023-12-21 13:27:57,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:57,458 INFO L495 AbstractCegarLoop]: Abstraction has 5964 states and 8256 transitions. [2023-12-21 13:27:57,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:57,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5964 states and 8256 transitions. [2023-12-21 13:27:57,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-21 13:27:57,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:57,463 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] [2023-12-21 13:27:57,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:27:57,463 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:57,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:57,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1337543172, now seen corresponding path program 1 times [2023-12-21 13:27:57,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:57,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67036555] [2023-12-21 13:27:57,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:57,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:57,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:57,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67036555] [2023-12-21 13:27:57,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67036555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:57,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:57,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 13:27:57,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835298477] [2023-12-21 13:27:57,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:57,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:27:57,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:57,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:27:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:27:57,691 INFO L87 Difference]: Start difference. First operand 5964 states and 8256 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:59,622 INFO L93 Difference]: Finished difference Result 16446 states and 23718 transitions. [2023-12-21 13:27:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:27:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2023-12-21 13:27:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:59,638 INFO L225 Difference]: With dead ends: 16446 [2023-12-21 13:27:59,638 INFO L226 Difference]: Without dead ends: 13747 [2023-12-21 13:27:59,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:27:59,646 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 5435 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 4593 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5435 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 4640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 4593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:59,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5435 Valid, 4697 Invalid, 4640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 4593 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:27:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13747 states. [2023-12-21 13:27:59,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13747 to 5964. [2023-12-21 13:27:59,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5964 states, 5962 states have (on average 1.3846024823884602) internal successors, (8255), 5963 states have internal predecessors, (8255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:59,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5964 states to 5964 states and 8255 transitions. [2023-12-21 13:27:59,744 INFO L78 Accepts]: Start accepts. Automaton has 5964 states and 8255 transitions. Word has length 70 [2023-12-21 13:27:59,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:59,745 INFO L495 AbstractCegarLoop]: Abstraction has 5964 states and 8255 transitions. [2023-12-21 13:27:59,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5964 states and 8255 transitions. [2023-12-21 13:27:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-21 13:27:59,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:59,750 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] [2023-12-21 13:27:59,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:27:59,750 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:59,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:59,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1077974177, now seen corresponding path program 1 times [2023-12-21 13:27:59,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:59,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090513399] [2023-12-21 13:27:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:59,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:27:59,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:27:59,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:27:59,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090513399] [2023-12-21 13:27:59,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090513399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:27:59,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:27:59,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:27:59,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776651283] [2023-12-21 13:27:59,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:27:59,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:27:59,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:27:59,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:27:59,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:27:59,789 INFO L87 Difference]: Start difference. First operand 5964 states and 8255 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:59,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:27:59,850 INFO L93 Difference]: Finished difference Result 10138 states and 14712 transitions. [2023-12-21 13:27:59,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:27:59,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2023-12-21 13:27:59,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:27:59,858 INFO L225 Difference]: With dead ends: 10138 [2023-12-21 13:27:59,858 INFO L226 Difference]: Without dead ends: 7109 [2023-12-21 13:27:59,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:27:59,862 INFO L413 NwaCegarLoop]: 1338 mSDtfsCounter, 751 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:27:59,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 1898 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:27:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7109 states. [2023-12-21 13:27:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7109 to 5865. [2023-12-21 13:27:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5865 states, 5863 states have (on average 1.413781340610609) internal successors, (8289), 5864 states have internal predecessors, (8289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5865 states to 5865 states and 8289 transitions. [2023-12-21 13:27:59,920 INFO L78 Accepts]: Start accepts. Automaton has 5865 states and 8289 transitions. Word has length 70 [2023-12-21 13:27:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:27:59,920 INFO L495 AbstractCegarLoop]: Abstraction has 5865 states and 8289 transitions. [2023-12-21 13:27:59,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:27:59,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5865 states and 8289 transitions. [2023-12-21 13:27:59,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-21 13:27:59,924 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:27:59,924 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] [2023-12-21 13:27:59,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:27:59,924 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:27:59,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:27:59,925 INFO L85 PathProgramCache]: Analyzing trace with hash -30289550, now seen corresponding path program 1 times [2023-12-21 13:27:59,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:27:59,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788552317] [2023-12-21 13:27:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:27:59,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:27:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:00,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:00,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788552317] [2023-12-21 13:28:00,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788552317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:00,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:00,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:28:00,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170302449] [2023-12-21 13:28:00,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:00,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:28:00,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:00,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:28:00,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:28:00,119 INFO L87 Difference]: Start difference. First operand 5865 states and 8289 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:01,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:01,897 INFO L93 Difference]: Finished difference Result 10767 states and 15498 transitions. [2023-12-21 13:28:01,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:28:01,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2023-12-21 13:28:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:01,907 INFO L225 Difference]: With dead ends: 10767 [2023-12-21 13:28:01,907 INFO L226 Difference]: Without dead ends: 9695 [2023-12-21 13:28:01,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:28:01,911 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 4629 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 3572 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4629 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:01,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4629 Valid, 4023 Invalid, 3577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3572 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 13:28:01,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9695 states. [2023-12-21 13:28:01,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9695 to 5865. [2023-12-21 13:28:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5865 states, 5863 states have (on average 1.413610779464438) internal successors, (8288), 5864 states have internal predecessors, (8288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:01,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5865 states to 5865 states and 8288 transitions. [2023-12-21 13:28:01,980 INFO L78 Accepts]: Start accepts. Automaton has 5865 states and 8288 transitions. Word has length 70 [2023-12-21 13:28:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:01,980 INFO L495 AbstractCegarLoop]: Abstraction has 5865 states and 8288 transitions. [2023-12-21 13:28:01,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 5865 states and 8288 transitions. [2023-12-21 13:28:01,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 13:28:01,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:01,984 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] [2023-12-21 13:28:01,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 13:28:01,985 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:01,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1395696457, now seen corresponding path program 1 times [2023-12-21 13:28:01,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:01,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507026691] [2023-12-21 13:28:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:01,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:02,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:02,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507026691] [2023-12-21 13:28:02,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507026691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:02,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:02,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:02,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158208486] [2023-12-21 13:28:02,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:02,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:02,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:02,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:02,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:02,024 INFO L87 Difference]: Start difference. First operand 5865 states and 8288 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:02,100 INFO L93 Difference]: Finished difference Result 12325 states and 18148 transitions. [2023-12-21 13:28:02,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:02,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2023-12-21 13:28:02,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:02,107 INFO L225 Difference]: With dead ends: 12325 [2023-12-21 13:28:02,108 INFO L226 Difference]: Without dead ends: 8413 [2023-12-21 13:28:02,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:02,113 INFO L413 NwaCegarLoop]: 1295 mSDtfsCounter, 768 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:02,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1821 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8413 states. [2023-12-21 13:28:02,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8413 to 8411. [2023-12-21 13:28:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8411 states, 8409 states have (on average 1.442739921512665) internal successors, (12132), 8410 states have internal predecessors, (12132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8411 states to 8411 states and 12132 transitions. [2023-12-21 13:28:02,186 INFO L78 Accepts]: Start accepts. Automaton has 8411 states and 12132 transitions. Word has length 71 [2023-12-21 13:28:02,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:02,187 INFO L495 AbstractCegarLoop]: Abstraction has 8411 states and 12132 transitions. [2023-12-21 13:28:02,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,187 INFO L276 IsEmpty]: Start isEmpty. Operand 8411 states and 12132 transitions. [2023-12-21 13:28:02,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 13:28:02,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:02,193 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] [2023-12-21 13:28:02,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 13:28:02,193 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:02,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:02,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1484957772, now seen corresponding path program 1 times [2023-12-21 13:28:02,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:02,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491490182] [2023-12-21 13:28:02,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:02,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:02,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:02,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:02,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491490182] [2023-12-21 13:28:02,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491490182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:02,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:02,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:02,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882462823] [2023-12-21 13:28:02,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:02,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:02,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:02,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:02,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:02,233 INFO L87 Difference]: Start difference. First operand 8411 states and 12132 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:02,301 INFO L93 Difference]: Finished difference Result 18227 states and 27041 transitions. [2023-12-21 13:28:02,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:02,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2023-12-21 13:28:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:02,313 INFO L225 Difference]: With dead ends: 18227 [2023-12-21 13:28:02,313 INFO L226 Difference]: Without dead ends: 11604 [2023-12-21 13:28:02,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:02,321 INFO L413 NwaCegarLoop]: 1241 mSDtfsCounter, 706 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:02,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1816 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:02,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11604 states. [2023-12-21 13:28:02,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11604 to 9323. [2023-12-21 13:28:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9323 states, 9321 states have (on average 1.4530629760755285) internal successors, (13544), 9322 states have internal predecessors, (13544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9323 states to 9323 states and 13544 transitions. [2023-12-21 13:28:02,421 INFO L78 Accepts]: Start accepts. Automaton has 9323 states and 13544 transitions. Word has length 71 [2023-12-21 13:28:02,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:02,421 INFO L495 AbstractCegarLoop]: Abstraction has 9323 states and 13544 transitions. [2023-12-21 13:28:02,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand 9323 states and 13544 transitions. [2023-12-21 13:28:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 13:28:02,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:02,423 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] [2023-12-21 13:28:02,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 13:28:02,423 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:02,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:02,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1208387843, now seen corresponding path program 1 times [2023-12-21 13:28:02,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:02,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519604227] [2023-12-21 13:28:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:02,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:02,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:02,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519604227] [2023-12-21 13:28:02,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519604227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:02,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:02,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:02,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126909339] [2023-12-21 13:28:02,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:02,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:02,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:02,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:02,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:02,462 INFO L87 Difference]: Start difference. First operand 9323 states and 13544 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:02,558 INFO L93 Difference]: Finished difference Result 24308 states and 35783 transitions. [2023-12-21 13:28:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:02,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2023-12-21 13:28:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:02,576 INFO L225 Difference]: With dead ends: 24308 [2023-12-21 13:28:02,576 INFO L226 Difference]: Without dead ends: 16235 [2023-12-21 13:28:02,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:02,588 INFO L413 NwaCegarLoop]: 1297 mSDtfsCounter, 767 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:02,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 2244 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:02,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16235 states. [2023-12-21 13:28:02,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16235 to 16233. [2023-12-21 13:28:02,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16233 states, 16231 states have (on average 1.4444581356663175) internal successors, (23445), 16232 states have internal predecessors, (23445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16233 states to 16233 states and 23445 transitions. [2023-12-21 13:28:02,754 INFO L78 Accepts]: Start accepts. Automaton has 16233 states and 23445 transitions. Word has length 71 [2023-12-21 13:28:02,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:02,754 INFO L495 AbstractCegarLoop]: Abstraction has 16233 states and 23445 transitions. [2023-12-21 13:28:02,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:02,755 INFO L276 IsEmpty]: Start isEmpty. Operand 16233 states and 23445 transitions. [2023-12-21 13:28:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-21 13:28:02,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:02,757 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] [2023-12-21 13:28:02,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 13:28:02,758 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:02,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:02,758 INFO L85 PathProgramCache]: Analyzing trace with hash -372982566, now seen corresponding path program 1 times [2023-12-21 13:28:02,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:02,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147969454] [2023-12-21 13:28:02,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:02,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:02,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:02,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147969454] [2023-12-21 13:28:02,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147969454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:02,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:02,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:02,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824278037] [2023-12-21 13:28:02,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:02,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:02,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:02,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:02,954 INFO L87 Difference]: Start difference. First operand 16233 states and 23445 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:04,424 INFO L93 Difference]: Finished difference Result 24794 states and 35503 transitions. [2023-12-21 13:28:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:28:04,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2023-12-21 13:28:04,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:04,453 INFO L225 Difference]: With dead ends: 24794 [2023-12-21 13:28:04,453 INFO L226 Difference]: Without dead ends: 24714 [2023-12-21 13:28:04,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:28:04,463 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 4979 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4979 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 2991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:04,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4979 Valid, 3065 Invalid, 2991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 13:28:04,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24714 states. [2023-12-21 13:28:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24714 to 16233. [2023-12-21 13:28:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16233 states, 16231 states have (on average 1.4443965251678885) internal successors, (23444), 16232 states have internal predecessors, (23444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:04,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16233 states to 16233 states and 23444 transitions. [2023-12-21 13:28:04,679 INFO L78 Accepts]: Start accepts. Automaton has 16233 states and 23444 transitions. Word has length 72 [2023-12-21 13:28:04,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:04,679 INFO L495 AbstractCegarLoop]: Abstraction has 16233 states and 23444 transitions. [2023-12-21 13:28:04,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 16233 states and 23444 transitions. [2023-12-21 13:28:04,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-21 13:28:04,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:04,682 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] [2023-12-21 13:28:04,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 13:28:04,682 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:04,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:04,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1214563715, now seen corresponding path program 1 times [2023-12-21 13:28:04,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:04,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875716634] [2023-12-21 13:28:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:04,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:04,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:04,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875716634] [2023-12-21 13:28:04,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875716634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:04,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:04,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:04,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557847469] [2023-12-21 13:28:04,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:04,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:04,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:04,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:04,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:04,725 INFO L87 Difference]: Start difference. First operand 16233 states and 23444 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:04,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:04,867 INFO L93 Difference]: Finished difference Result 34443 states and 50235 transitions. [2023-12-21 13:28:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:04,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2023-12-21 13:28:04,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:04,888 INFO L225 Difference]: With dead ends: 34443 [2023-12-21 13:28:04,888 INFO L226 Difference]: Without dead ends: 18988 [2023-12-21 13:28:04,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:04,905 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 1104 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:04,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 1504 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:04,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18988 states. [2023-12-21 13:28:05,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18988 to 15187. [2023-12-21 13:28:05,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15187 states, 15185 states have (on average 1.45584458347053) internal successors, (22107), 15186 states have internal predecessors, (22107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15187 states to 15187 states and 22107 transitions. [2023-12-21 13:28:05,075 INFO L78 Accepts]: Start accepts. Automaton has 15187 states and 22107 transitions. Word has length 72 [2023-12-21 13:28:05,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:05,076 INFO L495 AbstractCegarLoop]: Abstraction has 15187 states and 22107 transitions. [2023-12-21 13:28:05,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:05,076 INFO L276 IsEmpty]: Start isEmpty. Operand 15187 states and 22107 transitions. [2023-12-21 13:28:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:28:05,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:05,078 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] [2023-12-21 13:28:05,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 13:28:05,078 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:05,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:05,078 INFO L85 PathProgramCache]: Analyzing trace with hash 805421842, now seen corresponding path program 1 times [2023-12-21 13:28:05,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:05,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117068219] [2023-12-21 13:28:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:05,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:05,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:05,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117068219] [2023-12-21 13:28:05,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117068219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:05,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:05,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:28:05,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61569292] [2023-12-21 13:28:05,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:05,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:28:05,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:05,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:28:05,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:28:05,236 INFO L87 Difference]: Start difference. First operand 15187 states and 22107 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:07,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:07,159 INFO L93 Difference]: Finished difference Result 27104 states and 39238 transitions. [2023-12-21 13:28:07,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 13:28:07,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:28:07,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:07,191 INFO L225 Difference]: With dead ends: 27104 [2023-12-21 13:28:07,191 INFO L226 Difference]: Without dead ends: 27001 [2023-12-21 13:28:07,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2023-12-21 13:28:07,201 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 5532 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 3215 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:07,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5532 Valid, 3450 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3215 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 13:28:07,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27001 states. [2023-12-21 13:28:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27001 to 15187. [2023-12-21 13:28:07,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15187 states, 15185 states have (on average 1.4557787290088904) internal successors, (22106), 15186 states have internal predecessors, (22106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:07,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15187 states to 15187 states and 22106 transitions. [2023-12-21 13:28:07,432 INFO L78 Accepts]: Start accepts. Automaton has 15187 states and 22106 transitions. Word has length 73 [2023-12-21 13:28:07,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:07,432 INFO L495 AbstractCegarLoop]: Abstraction has 15187 states and 22106 transitions. [2023-12-21 13:28:07,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 15187 states and 22106 transitions. [2023-12-21 13:28:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:28:07,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:07,434 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] [2023-12-21 13:28:07,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 13:28:07,434 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:07,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:07,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1846027830, now seen corresponding path program 1 times [2023-12-21 13:28:07,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:07,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778722196] [2023-12-21 13:28:07,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:07,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:07,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:07,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778722196] [2023-12-21 13:28:07,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778722196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:07,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:07,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:07,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51485311] [2023-12-21 13:28:07,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:07,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:07,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:07,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:07,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:07,584 INFO L87 Difference]: Start difference. First operand 15187 states and 22106 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:08,435 INFO L93 Difference]: Finished difference Result 19561 states and 28248 transitions. [2023-12-21 13:28:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:28:08,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:28:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:08,465 INFO L225 Difference]: With dead ends: 19561 [2023-12-21 13:28:08,465 INFO L226 Difference]: Without dead ends: 19495 [2023-12-21 13:28:08,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:28:08,473 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 4628 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4628 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:08,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4628 Valid, 2828 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:28:08,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19495 states. [2023-12-21 13:28:08,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19495 to 15187. [2023-12-21 13:28:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15187 states, 15185 states have (on average 1.4557128745472505) internal successors, (22105), 15186 states have internal predecessors, (22105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15187 states to 15187 states and 22105 transitions. [2023-12-21 13:28:08,699 INFO L78 Accepts]: Start accepts. Automaton has 15187 states and 22105 transitions. Word has length 73 [2023-12-21 13:28:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:08,699 INFO L495 AbstractCegarLoop]: Abstraction has 15187 states and 22105 transitions. [2023-12-21 13:28:08,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:08,699 INFO L276 IsEmpty]: Start isEmpty. Operand 15187 states and 22105 transitions. [2023-12-21 13:28:08,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:28:08,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:08,701 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] [2023-12-21 13:28:08,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 13:28:08,701 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:08,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1717177262, now seen corresponding path program 1 times [2023-12-21 13:28:08,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:08,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641999161] [2023-12-21 13:28:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:08,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:08,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:08,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641999161] [2023-12-21 13:28:08,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641999161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:08,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:08,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:08,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984381247] [2023-12-21 13:28:08,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:08,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:08,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:08,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:08,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:08,864 INFO L87 Difference]: Start difference. First operand 15187 states and 22105 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:10,111 INFO L93 Difference]: Finished difference Result 22849 states and 33112 transitions. [2023-12-21 13:28:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:28:10,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:28:10,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:10,139 INFO L225 Difference]: With dead ends: 22849 [2023-12-21 13:28:10,139 INFO L226 Difference]: Without dead ends: 22773 [2023-12-21 13:28:10,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:28:10,149 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 3766 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3766 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:10,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3766 Valid, 3339 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 13:28:10,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22773 states. [2023-12-21 13:28:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22773 to 15187. [2023-12-21 13:28:10,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15187 states, 15185 states have (on average 1.4556470200856109) internal successors, (22104), 15186 states have internal predecessors, (22104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15187 states to 15187 states and 22104 transitions. [2023-12-21 13:28:10,346 INFO L78 Accepts]: Start accepts. Automaton has 15187 states and 22104 transitions. Word has length 73 [2023-12-21 13:28:10,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:10,346 INFO L495 AbstractCegarLoop]: Abstraction has 15187 states and 22104 transitions. [2023-12-21 13:28:10,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:10,346 INFO L276 IsEmpty]: Start isEmpty. Operand 15187 states and 22104 transitions. [2023-12-21 13:28:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:28:10,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:10,348 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] [2023-12-21 13:28:10,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 13:28:10,350 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:10,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2072332207, now seen corresponding path program 1 times [2023-12-21 13:28:10,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:10,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078527134] [2023-12-21 13:28:10,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:10,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:10,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:10,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:10,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078527134] [2023-12-21 13:28:10,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078527134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:10,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:10,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:28:10,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379718161] [2023-12-21 13:28:10,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:10,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:28:10,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:10,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:28:10,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:28:10,537 INFO L87 Difference]: Start difference. First operand 15187 states and 22104 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:12,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:12,392 INFO L93 Difference]: Finished difference Result 27084 states and 39207 transitions. [2023-12-21 13:28:12,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:28:12,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:28:12,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:12,423 INFO L225 Difference]: With dead ends: 27084 [2023-12-21 13:28:12,423 INFO L226 Difference]: Without dead ends: 26993 [2023-12-21 13:28:12,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:28:12,433 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 4690 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4690 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:12,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4690 Valid, 4147 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 13:28:12,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26993 states. [2023-12-21 13:28:12,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26993 to 15179. [2023-12-21 13:28:12,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15179 states, 15177 states have (on average 1.4556895302101864) internal successors, (22093), 15178 states have internal predecessors, (22093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15179 states to 15179 states and 22093 transitions. [2023-12-21 13:28:12,671 INFO L78 Accepts]: Start accepts. Automaton has 15179 states and 22093 transitions. Word has length 73 [2023-12-21 13:28:12,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:12,671 INFO L495 AbstractCegarLoop]: Abstraction has 15179 states and 22093 transitions. [2023-12-21 13:28:12,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:12,671 INFO L276 IsEmpty]: Start isEmpty. Operand 15179 states and 22093 transitions. [2023-12-21 13:28:12,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:28:12,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:12,673 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] [2023-12-21 13:28:12,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 13:28:12,674 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:12,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:12,674 INFO L85 PathProgramCache]: Analyzing trace with hash 861010402, now seen corresponding path program 1 times [2023-12-21 13:28:12,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:12,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494763299] [2023-12-21 13:28:12,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:12,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:12,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:12,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494763299] [2023-12-21 13:28:12,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494763299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:12,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:12,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:12,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842218147] [2023-12-21 13:28:12,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:12,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:12,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:12,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:12,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:12,822 INFO L87 Difference]: Start difference. First operand 15179 states and 22093 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:14,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:14,226 INFO L93 Difference]: Finished difference Result 22817 states and 33083 transitions. [2023-12-21 13:28:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:28:14,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:28:14,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:14,251 INFO L225 Difference]: With dead ends: 22817 [2023-12-21 13:28:14,252 INFO L226 Difference]: Without dead ends: 22751 [2023-12-21 13:28:14,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:28:14,260 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 3757 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 2995 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3757 SdHoareTripleChecker+Valid, 3492 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:14,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3757 Valid, 3492 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2995 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 13:28:14,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22751 states. [2023-12-21 13:28:14,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22751 to 15179. [2023-12-21 13:28:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15179 states, 15177 states have (on average 1.455623641035778) internal successors, (22092), 15178 states have internal predecessors, (22092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:14,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15179 states to 15179 states and 22092 transitions. [2023-12-21 13:28:14,460 INFO L78 Accepts]: Start accepts. Automaton has 15179 states and 22092 transitions. Word has length 73 [2023-12-21 13:28:14,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:14,461 INFO L495 AbstractCegarLoop]: Abstraction has 15179 states and 22092 transitions. [2023-12-21 13:28:14,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:14,461 INFO L276 IsEmpty]: Start isEmpty. Operand 15179 states and 22092 transitions. [2023-12-21 13:28:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:28:14,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:14,463 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] [2023-12-21 13:28:14,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 13:28:14,463 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:14,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash 895912627, now seen corresponding path program 1 times [2023-12-21 13:28:14,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:14,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389305839] [2023-12-21 13:28:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:14,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:14,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:14,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389305839] [2023-12-21 13:28:14,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389305839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:14,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:14,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 13:28:14,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699108703] [2023-12-21 13:28:14,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:14,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:28:14,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:14,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:28:14,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:28:14,802 INFO L87 Difference]: Start difference. First operand 15179 states and 22092 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:17,090 INFO L93 Difference]: Finished difference Result 51312 states and 74386 transitions. [2023-12-21 13:28:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 13:28:17,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:28:17,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:17,163 INFO L225 Difference]: With dead ends: 51312 [2023-12-21 13:28:17,163 INFO L226 Difference]: Without dead ends: 51236 [2023-12-21 13:28:17,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 13:28:17,183 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 8913 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8913 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 3519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:17,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8913 Valid, 3410 Invalid, 3519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:28:17,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51236 states. [2023-12-21 13:28:17,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51236 to 15183. [2023-12-21 13:28:17,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15183 states, 15181 states have (on average 1.4555035900138331) internal successors, (22096), 15182 states have internal predecessors, (22096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:17,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 22096 transitions. [2023-12-21 13:28:17,550 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 22096 transitions. Word has length 73 [2023-12-21 13:28:17,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:17,550 INFO L495 AbstractCegarLoop]: Abstraction has 15183 states and 22096 transitions. [2023-12-21 13:28:17,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 22096 transitions. [2023-12-21 13:28:17,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-21 13:28:17,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:17,552 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] [2023-12-21 13:28:17,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 13:28:17,553 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:17,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:17,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1391275332, now seen corresponding path program 1 times [2023-12-21 13:28:17,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:17,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880534076] [2023-12-21 13:28:17,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:17,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:17,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:17,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880534076] [2023-12-21 13:28:17,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880534076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:17,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:17,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:17,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023370050] [2023-12-21 13:28:17,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:17,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:17,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:17,805 INFO L87 Difference]: Start difference. First operand 15183 states and 22096 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:18,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:18,948 INFO L93 Difference]: Finished difference Result 19555 states and 28236 transitions. [2023-12-21 13:28:18,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:28:18,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-21 13:28:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:18,972 INFO L225 Difference]: With dead ends: 19555 [2023-12-21 13:28:18,972 INFO L226 Difference]: Without dead ends: 19486 [2023-12-21 13:28:18,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:28:18,980 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 4589 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4589 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:18,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4589 Valid, 2797 Invalid, 2540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:28:18,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19486 states. [2023-12-21 13:28:19,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19486 to 15178. [2023-12-21 13:28:19,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15178 states, 15176 states have (on average 1.455390089615182) internal successors, (22087), 15177 states have internal predecessors, (22087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:19,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15178 states to 15178 states and 22087 transitions. [2023-12-21 13:28:19,166 INFO L78 Accepts]: Start accepts. Automaton has 15178 states and 22087 transitions. Word has length 73 [2023-12-21 13:28:19,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:19,166 INFO L495 AbstractCegarLoop]: Abstraction has 15178 states and 22087 transitions. [2023-12-21 13:28:19,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:19,167 INFO L276 IsEmpty]: Start isEmpty. Operand 15178 states and 22087 transitions. [2023-12-21 13:28:19,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-21 13:28:19,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:19,169 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] [2023-12-21 13:28:19,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 13:28:19,169 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:19,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:19,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2099397559, now seen corresponding path program 1 times [2023-12-21 13:28:19,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:19,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542736657] [2023-12-21 13:28:19,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:19,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:19,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:19,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542736657] [2023-12-21 13:28:19,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542736657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:19,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:19,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:19,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979151175] [2023-12-21 13:28:19,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:19,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:19,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:19,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:19,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:19,320 INFO L87 Difference]: Start difference. First operand 15178 states and 22087 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:20,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:20,393 INFO L93 Difference]: Finished difference Result 19572 states and 28240 transitions. [2023-12-21 13:28:20,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:28:20,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2023-12-21 13:28:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:20,414 INFO L225 Difference]: With dead ends: 19572 [2023-12-21 13:28:20,414 INFO L226 Difference]: Without dead ends: 19496 [2023-12-21 13:28:20,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:28:20,422 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 4297 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:20,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 2949 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:28:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19496 states. [2023-12-21 13:28:20,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19496 to 15174. [2023-12-21 13:28:20,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15174 states, 15172 states have (on average 1.4554442393883469) internal successors, (22082), 15173 states have internal predecessors, (22082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15174 states to 15174 states and 22082 transitions. [2023-12-21 13:28:20,708 INFO L78 Accepts]: Start accepts. Automaton has 15174 states and 22082 transitions. Word has length 74 [2023-12-21 13:28:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:20,708 INFO L495 AbstractCegarLoop]: Abstraction has 15174 states and 22082 transitions. [2023-12-21 13:28:20,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:20,708 INFO L276 IsEmpty]: Start isEmpty. Operand 15174 states and 22082 transitions. [2023-12-21 13:28:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-21 13:28:20,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:20,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:28:20,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 13:28:20,711 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:20,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:20,711 INFO L85 PathProgramCache]: Analyzing trace with hash 327495962, now seen corresponding path program 1 times [2023-12-21 13:28:20,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:20,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448134186] [2023-12-21 13:28:20,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:20,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:21,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:21,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448134186] [2023-12-21 13:28:21,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448134186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:21,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:21,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:28:21,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450856649] [2023-12-21 13:28:21,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:21,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:28:21,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:21,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:28:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:28:21,099 INFO L87 Difference]: Start difference. First operand 15174 states and 22082 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:22,970 INFO L93 Difference]: Finished difference Result 49256 states and 71677 transitions. [2023-12-21 13:28:22,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 13:28:22,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2023-12-21 13:28:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:23,032 INFO L225 Difference]: With dead ends: 49256 [2023-12-21 13:28:23,032 INFO L226 Difference]: Without dead ends: 49164 [2023-12-21 13:28:23,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=269, Invalid=921, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 13:28:23,050 INFO L413 NwaCegarLoop]: 1429 mSDtfsCounter, 9500 mSDsluCounter, 8580 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9500 SdHoareTripleChecker+Valid, 10009 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:23,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9500 Valid, 10009 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:28:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49164 states. [2023-12-21 13:28:23,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49164 to 15146. [2023-12-21 13:28:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15146 states, 15145 states have (on average 1.4555298778474743) internal successors, (22044), 15145 states have internal predecessors, (22044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15146 states to 15146 states and 22044 transitions. [2023-12-21 13:28:23,431 INFO L78 Accepts]: Start accepts. Automaton has 15146 states and 22044 transitions. Word has length 75 [2023-12-21 13:28:23,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:23,433 INFO L495 AbstractCegarLoop]: Abstraction has 15146 states and 22044 transitions. [2023-12-21 13:28:23,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:23,433 INFO L276 IsEmpty]: Start isEmpty. Operand 15146 states and 22044 transitions. [2023-12-21 13:28:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-21 13:28:23,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:23,435 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] [2023-12-21 13:28:23,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 13:28:23,436 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:23,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:23,437 INFO L85 PathProgramCache]: Analyzing trace with hash 661817843, now seen corresponding path program 1 times [2023-12-21 13:28:23,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:23,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709890169] [2023-12-21 13:28:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:23,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:23,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:23,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709890169] [2023-12-21 13:28:23,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709890169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:23,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:23,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:23,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666710769] [2023-12-21 13:28:23,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:23,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:28:23,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:23,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:28:23,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:23,557 INFO L87 Difference]: Start difference. First operand 15146 states and 22044 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:23,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:23,829 INFO L93 Difference]: Finished difference Result 57979 states and 85128 transitions. [2023-12-21 13:28:23,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:28:23,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2023-12-21 13:28:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:23,880 INFO L225 Difference]: With dead ends: 57979 [2023-12-21 13:28:23,880 INFO L226 Difference]: Without dead ends: 44025 [2023-12-21 13:28:23,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:28:23,902 INFO L413 NwaCegarLoop]: 1118 mSDtfsCounter, 3764 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3764 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:23,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3764 Valid, 2549 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:23,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44025 states. [2023-12-21 13:28:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44025 to 28348. [2023-12-21 13:28:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28348 states, 28347 states have (on average 1.4479839136416552) internal successors, (41046), 28347 states have internal predecessors, (41046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:24,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28348 states to 28348 states and 41046 transitions. [2023-12-21 13:28:24,323 INFO L78 Accepts]: Start accepts. Automaton has 28348 states and 41046 transitions. Word has length 75 [2023-12-21 13:28:24,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:24,323 INFO L495 AbstractCegarLoop]: Abstraction has 28348 states and 41046 transitions. [2023-12-21 13:28:24,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:24,323 INFO L276 IsEmpty]: Start isEmpty. Operand 28348 states and 41046 transitions. [2023-12-21 13:28:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 13:28:24,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:24,326 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] [2023-12-21 13:28:24,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 13:28:24,327 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:24,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:24,327 INFO L85 PathProgramCache]: Analyzing trace with hash 22124065, now seen corresponding path program 1 times [2023-12-21 13:28:24,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:24,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229939106] [2023-12-21 13:28:24,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:24,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:25,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:25,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229939106] [2023-12-21 13:28:25,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229939106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:25,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:25,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-21 13:28:25,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298218784] [2023-12-21 13:28:25,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:25,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-21 13:28:25,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:25,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-21 13:28:25,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:28:25,751 INFO L87 Difference]: Start difference. First operand 28348 states and 41046 transitions. Second operand has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:30,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:30,675 INFO L93 Difference]: Finished difference Result 41854 states and 60184 transitions. [2023-12-21 13:28:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-21 13:28:30,675 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-21 13:28:30,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:30,727 INFO L225 Difference]: With dead ends: 41854 [2023-12-21 13:28:30,727 INFO L226 Difference]: Without dead ends: 41789 [2023-12-21 13:28:30,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=405, Invalid=2145, Unknown=0, NotChecked=0, Total=2550 [2023-12-21 13:28:30,741 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 9760 mSDsluCounter, 19158 mSDsCounter, 0 mSdLazyCounter, 8111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9760 SdHoareTripleChecker+Valid, 20477 SdHoareTripleChecker+Invalid, 8114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:30,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9760 Valid, 20477 Invalid, 8114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 8111 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-21 13:28:30,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41789 states. [2023-12-21 13:28:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41789 to 28366. [2023-12-21 13:28:31,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28366 states, 28365 states have (on average 1.4479111581173982) internal successors, (41070), 28365 states have internal predecessors, (41070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28366 states to 28366 states and 41070 transitions. [2023-12-21 13:28:31,225 INFO L78 Accepts]: Start accepts. Automaton has 28366 states and 41070 transitions. Word has length 76 [2023-12-21 13:28:31,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:31,225 INFO L495 AbstractCegarLoop]: Abstraction has 28366 states and 41070 transitions. [2023-12-21 13:28:31,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:31,225 INFO L276 IsEmpty]: Start isEmpty. Operand 28366 states and 41070 transitions. [2023-12-21 13:28:31,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 13:28:31,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:31,228 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] [2023-12-21 13:28:31,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 13:28:31,228 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:31,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash 839549454, now seen corresponding path program 1 times [2023-12-21 13:28:31,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:31,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348081760] [2023-12-21 13:28:31,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:31,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:31,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:31,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:31,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348081760] [2023-12-21 13:28:31,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348081760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:31,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:31,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:28:31,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869797247] [2023-12-21 13:28:31,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:31,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:28:31,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:31,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:28:31,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:28:31,613 INFO L87 Difference]: Start difference. First operand 28366 states and 41070 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:33,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:33,879 INFO L93 Difference]: Finished difference Result 95323 states and 137456 transitions. [2023-12-21 13:28:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 13:28:33,879 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-21 13:28:33,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:34,006 INFO L225 Difference]: With dead ends: 95323 [2023-12-21 13:28:34,007 INFO L226 Difference]: Without dead ends: 95233 [2023-12-21 13:28:34,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=282, Invalid=978, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 13:28:34,040 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 10262 mSDsluCounter, 7894 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10262 SdHoareTripleChecker+Valid, 9410 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:34,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10262 Valid, 9410 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:28:34,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95233 states. [2023-12-21 13:28:34,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95233 to 28340. [2023-12-21 13:28:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28340 states, 28339 states have (on average 1.448039803803945) internal successors, (41036), 28339 states have internal predecessors, (41036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:34,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28340 states to 28340 states and 41036 transitions. [2023-12-21 13:28:34,886 INFO L78 Accepts]: Start accepts. Automaton has 28340 states and 41036 transitions. Word has length 76 [2023-12-21 13:28:34,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:34,886 INFO L495 AbstractCegarLoop]: Abstraction has 28340 states and 41036 transitions. [2023-12-21 13:28:34,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:34,886 INFO L276 IsEmpty]: Start isEmpty. Operand 28340 states and 41036 transitions. [2023-12-21 13:28:34,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 13:28:34,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:34,889 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] [2023-12-21 13:28:34,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 13:28:34,889 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:34,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:34,890 INFO L85 PathProgramCache]: Analyzing trace with hash 941593760, now seen corresponding path program 1 times [2023-12-21 13:28:34,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:34,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386510128] [2023-12-21 13:28:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:34,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:35,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386510128] [2023-12-21 13:28:35,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386510128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:35,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:35,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-21 13:28:35,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859705420] [2023-12-21 13:28:35,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:35,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-21 13:28:35,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:35,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-21 13:28:35,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:28:35,986 INFO L87 Difference]: Start difference. First operand 28340 states and 41036 transitions. Second operand has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:41,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:41,685 INFO L93 Difference]: Finished difference Result 45185 states and 65009 transitions. [2023-12-21 13:28:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-21 13:28:41,685 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-21 13:28:41,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:41,735 INFO L225 Difference]: With dead ends: 45185 [2023-12-21 13:28:41,736 INFO L226 Difference]: Without dead ends: 45120 [2023-12-21 13:28:41,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=417, Invalid=1935, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 13:28:41,752 INFO L413 NwaCegarLoop]: 1243 mSDtfsCounter, 9681 mSDsluCounter, 20570 mSDsCounter, 0 mSdLazyCounter, 8703 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9681 SdHoareTripleChecker+Valid, 21813 SdHoareTripleChecker+Invalid, 8708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:41,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9681 Valid, 21813 Invalid, 8708 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 8703 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-21 13:28:41,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45120 states. [2023-12-21 13:28:42,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45120 to 28353. [2023-12-21 13:28:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28353 states, 28352 states have (on average 1.4479401805869074) internal successors, (41052), 28352 states have internal predecessors, (41052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:42,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28353 states to 28353 states and 41052 transitions. [2023-12-21 13:28:42,114 INFO L78 Accepts]: Start accepts. Automaton has 28353 states and 41052 transitions. Word has length 76 [2023-12-21 13:28:42,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:42,114 INFO L495 AbstractCegarLoop]: Abstraction has 28353 states and 41052 transitions. [2023-12-21 13:28:42,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:42,114 INFO L276 IsEmpty]: Start isEmpty. Operand 28353 states and 41052 transitions. [2023-12-21 13:28:42,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 13:28:42,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:42,117 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] [2023-12-21 13:28:42,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 13:28:42,117 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:42,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:42,118 INFO L85 PathProgramCache]: Analyzing trace with hash 814993886, now seen corresponding path program 1 times [2023-12-21 13:28:42,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:42,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603647768] [2023-12-21 13:28:42,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:42,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:42,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:42,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603647768] [2023-12-21 13:28:42,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603647768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:42,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:42,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:28:42,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766541475] [2023-12-21 13:28:42,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:42,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:28:42,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:42,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:28:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:28:42,681 INFO L87 Difference]: Start difference. First operand 28353 states and 41052 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:44,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:44,177 INFO L93 Difference]: Finished difference Result 62873 states and 90731 transitions. [2023-12-21 13:28:44,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:28:44,177 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-21 13:28:44,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:44,243 INFO L225 Difference]: With dead ends: 62873 [2023-12-21 13:28:44,243 INFO L226 Difference]: Without dead ends: 62763 [2023-12-21 13:28:44,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2023-12-21 13:28:44,253 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 8178 mSDsluCounter, 5400 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8178 SdHoareTripleChecker+Valid, 6515 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:44,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8178 Valid, 6515 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:28:44,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62763 states. [2023-12-21 13:28:44,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62763 to 28307. [2023-12-21 13:28:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28307 states, 28306 states have (on average 1.4482441885112698) internal successors, (40994), 28306 states have internal predecessors, (40994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28307 states to 28307 states and 40994 transitions. [2023-12-21 13:28:44,723 INFO L78 Accepts]: Start accepts. Automaton has 28307 states and 40994 transitions. Word has length 76 [2023-12-21 13:28:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:44,724 INFO L495 AbstractCegarLoop]: Abstraction has 28307 states and 40994 transitions. [2023-12-21 13:28:44,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 28307 states and 40994 transitions. [2023-12-21 13:28:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 13:28:44,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:44,727 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] [2023-12-21 13:28:44,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 13:28:44,728 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:44,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:44,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1391764477, now seen corresponding path program 1 times [2023-12-21 13:28:44,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:44,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527241826] [2023-12-21 13:28:44,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:44,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:44,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:44,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:44,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527241826] [2023-12-21 13:28:44,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527241826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:44,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:44,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:44,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058823559] [2023-12-21 13:28:44,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:44,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:28:44,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:44,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:28:44,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:44,796 INFO L87 Difference]: Start difference. First operand 28307 states and 40994 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:45,005 INFO L93 Difference]: Finished difference Result 47795 states and 69248 transitions. [2023-12-21 13:28:45,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:28:45,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-21 13:28:45,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:45,035 INFO L225 Difference]: With dead ends: 47795 [2023-12-21 13:28:45,035 INFO L226 Difference]: Without dead ends: 20600 [2023-12-21 13:28:45,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:45,056 INFO L413 NwaCegarLoop]: 1028 mSDtfsCounter, 1507 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:45,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1787 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20600 states. [2023-12-21 13:28:45,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20600 to 20594. [2023-12-21 13:28:45,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20594 states, 20593 states have (on average 1.4336424998785995) internal successors, (29523), 20593 states have internal predecessors, (29523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20594 states to 20594 states and 29523 transitions. [2023-12-21 13:28:45,449 INFO L78 Accepts]: Start accepts. Automaton has 20594 states and 29523 transitions. Word has length 76 [2023-12-21 13:28:45,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:45,449 INFO L495 AbstractCegarLoop]: Abstraction has 20594 states and 29523 transitions. [2023-12-21 13:28:45,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:45,450 INFO L276 IsEmpty]: Start isEmpty. Operand 20594 states and 29523 transitions. [2023-12-21 13:28:45,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 13:28:45,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:45,453 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] [2023-12-21 13:28:45,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 13:28:45,453 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:45,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2124498390, now seen corresponding path program 1 times [2023-12-21 13:28:45,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:45,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551869485] [2023-12-21 13:28:45,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:45,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:45,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:45,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551869485] [2023-12-21 13:28:45,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551869485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:45,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:45,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 13:28:45,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776814107] [2023-12-21 13:28:45,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:45,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:28:45,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:45,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:28:45,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:28:45,918 INFO L87 Difference]: Start difference. First operand 20594 states and 29523 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:46,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:46,635 INFO L93 Difference]: Finished difference Result 36688 states and 52592 transitions. [2023-12-21 13:28:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:28:46,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-21 13:28:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:46,682 INFO L225 Difference]: With dead ends: 36688 [2023-12-21 13:28:46,682 INFO L226 Difference]: Without dead ends: 36608 [2023-12-21 13:28:46,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-12-21 13:28:46,696 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 4492 mSDsluCounter, 5019 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4492 SdHoareTripleChecker+Valid, 6284 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:46,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4492 Valid, 6284 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:28:46,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36608 states. [2023-12-21 13:28:47,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36608 to 20565. [2023-12-21 13:28:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20565 states, 20564 states have (on average 1.4337677494650847) internal successors, (29484), 20564 states have internal predecessors, (29484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20565 states to 20565 states and 29484 transitions. [2023-12-21 13:28:47,069 INFO L78 Accepts]: Start accepts. Automaton has 20565 states and 29484 transitions. Word has length 77 [2023-12-21 13:28:47,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:47,069 INFO L495 AbstractCegarLoop]: Abstraction has 20565 states and 29484 transitions. [2023-12-21 13:28:47,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,069 INFO L276 IsEmpty]: Start isEmpty. Operand 20565 states and 29484 transitions. [2023-12-21 13:28:47,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 13:28:47,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:47,073 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] [2023-12-21 13:28:47,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 13:28:47,083 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:47,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:47,083 INFO L85 PathProgramCache]: Analyzing trace with hash -538079444, now seen corresponding path program 1 times [2023-12-21 13:28:47,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:47,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467754866] [2023-12-21 13:28:47,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:47,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:47,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:47,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467754866] [2023-12-21 13:28:47,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467754866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:47,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:47,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:47,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291567513] [2023-12-21 13:28:47,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:47,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:47,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:47,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:47,198 INFO L87 Difference]: Start difference. First operand 20565 states and 29484 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:47,372 INFO L93 Difference]: Finished difference Result 58075 states and 83630 transitions. [2023-12-21 13:28:47,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:47,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-21 13:28:47,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:47,414 INFO L225 Difference]: With dead ends: 58075 [2023-12-21 13:28:47,414 INFO L226 Difference]: Without dead ends: 38593 [2023-12-21 13:28:47,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:47,436 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 510 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:47,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1501 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:47,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38593 states. [2023-12-21 13:28:47,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38593 to 36639. [2023-12-21 13:28:47,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36639 states, 36638 states have (on average 1.431027894535728) internal successors, (52430), 36638 states have internal predecessors, (52430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36639 states to 36639 states and 52430 transitions. [2023-12-21 13:28:47,917 INFO L78 Accepts]: Start accepts. Automaton has 36639 states and 52430 transitions. Word has length 77 [2023-12-21 13:28:47,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:47,918 INFO L495 AbstractCegarLoop]: Abstraction has 36639 states and 52430 transitions. [2023-12-21 13:28:47,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,918 INFO L276 IsEmpty]: Start isEmpty. Operand 36639 states and 52430 transitions. [2023-12-21 13:28:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 13:28:47,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:47,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:28:47,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 13:28:47,921 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:47,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:47,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1188561083, now seen corresponding path program 1 times [2023-12-21 13:28:47,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:47,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186500652] [2023-12-21 13:28:47,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:47,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:48,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:48,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186500652] [2023-12-21 13:28:48,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186500652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:48,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:48,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:48,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014839843] [2023-12-21 13:28:48,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:48,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:48,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:48,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:48,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:48,138 INFO L87 Difference]: Start difference. First operand 36639 states and 52430 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:48,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:48,443 INFO L93 Difference]: Finished difference Result 104843 states and 150112 transitions. [2023-12-21 13:28:48,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:48,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2023-12-21 13:28:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:48,529 INFO L225 Difference]: With dead ends: 104843 [2023-12-21 13:28:48,529 INFO L226 Difference]: Without dead ends: 69287 [2023-12-21 13:28:48,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:48,571 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 407 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:48,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1564 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:48,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69287 states. [2023-12-21 13:28:49,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69287 to 65381. [2023-12-21 13:28:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65381 states, 65380 states have (on average 1.4227286631997553) internal successors, (93018), 65380 states have internal predecessors, (93018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65381 states to 65381 states and 93018 transitions. [2023-12-21 13:28:49,543 INFO L78 Accepts]: Start accepts. Automaton has 65381 states and 93018 transitions. Word has length 80 [2023-12-21 13:28:49,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:49,543 INFO L495 AbstractCegarLoop]: Abstraction has 65381 states and 93018 transitions. [2023-12-21 13:28:49,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 65381 states and 93018 transitions. [2023-12-21 13:28:49,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 13:28:49,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:49,546 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] [2023-12-21 13:28:49,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 13:28:49,546 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:49,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:49,547 INFO L85 PathProgramCache]: Analyzing trace with hash -813868810, now seen corresponding path program 1 times [2023-12-21 13:28:49,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:49,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784610503] [2023-12-21 13:28:49,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:49,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:49,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:49,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784610503] [2023-12-21 13:28:49,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784610503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:49,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:49,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:49,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221413805] [2023-12-21 13:28:49,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:49,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:28:49,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:28:49,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:49,831 INFO L87 Difference]: Start difference. First operand 65381 states and 93018 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:50,331 INFO L93 Difference]: Finished difference Result 137400 states and 193112 transitions. [2023-12-21 13:28:50,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:28:50,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-21 13:28:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:50,561 INFO L225 Difference]: With dead ends: 137400 [2023-12-21 13:28:50,561 INFO L226 Difference]: Without dead ends: 137398 [2023-12-21 13:28:50,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:28:50,589 INFO L413 NwaCegarLoop]: 1061 mSDtfsCounter, 1015 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 4319 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:50,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 4319 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:50,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137398 states. [2023-12-21 13:28:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137398 to 69581. [2023-12-21 13:28:51,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69581 states, 69580 states have (on average 1.3972118424834723) internal successors, (97218), 69580 states have internal predecessors, (97218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69581 states to 69581 states and 97218 transitions. [2023-12-21 13:28:51,952 INFO L78 Accepts]: Start accepts. Automaton has 69581 states and 97218 transitions. Word has length 81 [2023-12-21 13:28:51,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:51,954 INFO L495 AbstractCegarLoop]: Abstraction has 69581 states and 97218 transitions. [2023-12-21 13:28:51,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:51,954 INFO L276 IsEmpty]: Start isEmpty. Operand 69581 states and 97218 transitions. [2023-12-21 13:28:51,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 13:28:51,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:51,956 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] [2023-12-21 13:28:51,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 13:28:51,957 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:51,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:51,966 INFO L85 PathProgramCache]: Analyzing trace with hash 542491448, now seen corresponding path program 1 times [2023-12-21 13:28:51,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:51,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393223619] [2023-12-21 13:28:51,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:51,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:52,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:52,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393223619] [2023-12-21 13:28:52,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393223619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:52,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:52,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:52,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750780026] [2023-12-21 13:28:52,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:52,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:52,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:52,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:52,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:52,008 INFO L87 Difference]: Start difference. First operand 69581 states and 97218 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:52,889 INFO L93 Difference]: Finished difference Result 195205 states and 272830 transitions. [2023-12-21 13:28:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2023-12-21 13:28:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:53,051 INFO L225 Difference]: With dead ends: 195205 [2023-12-21 13:28:53,051 INFO L226 Difference]: Without dead ends: 126663 [2023-12-21 13:28:53,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:53,075 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 477 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:53,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1449 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:53,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126663 states. [2023-12-21 13:28:54,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126663 to 125261. [2023-12-21 13:28:54,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125261 states, 125260 states have (on average 1.3777023790515728) internal successors, (172571), 125260 states have internal predecessors, (172571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125261 states to 125261 states and 172571 transitions. [2023-12-21 13:28:54,730 INFO L78 Accepts]: Start accepts. Automaton has 125261 states and 172571 transitions. Word has length 82 [2023-12-21 13:28:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:54,730 INFO L495 AbstractCegarLoop]: Abstraction has 125261 states and 172571 transitions. [2023-12-21 13:28:54,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 125261 states and 172571 transitions. [2023-12-21 13:28:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:28:54,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:54,734 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] [2023-12-21 13:28:54,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 13:28:54,734 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:54,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:54,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1677678487, now seen corresponding path program 1 times [2023-12-21 13:28:54,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:54,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361412308] [2023-12-21 13:28:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:54,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:55,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:55,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361412308] [2023-12-21 13:28:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361412308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:55,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:55,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:55,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942529329] [2023-12-21 13:28:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:55,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:28:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:55,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:28:55,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:55,041 INFO L87 Difference]: Start difference. First operand 125261 states and 172571 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:55,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:55,964 INFO L93 Difference]: Finished difference Result 248256 states and 342649 transitions. [2023-12-21 13:28:55,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:28:55,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-21 13:28:55,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:56,292 INFO L225 Difference]: With dead ends: 248256 [2023-12-21 13:28:56,292 INFO L226 Difference]: Without dead ends: 210946 [2023-12-21 13:28:56,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:28:56,354 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 2850 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:56,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 2491 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:56,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210946 states. [2023-12-21 13:28:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210946 to 158733. [2023-12-21 13:28:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158733 states, 158732 states have (on average 1.3744109568329008) internal successors, (218163), 158732 states have internal predecessors, (218163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:59,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158733 states to 158733 states and 218163 transitions. [2023-12-21 13:28:59,020 INFO L78 Accepts]: Start accepts. Automaton has 158733 states and 218163 transitions. Word has length 84 [2023-12-21 13:28:59,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:59,020 INFO L495 AbstractCegarLoop]: Abstraction has 158733 states and 218163 transitions. [2023-12-21 13:28:59,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:59,020 INFO L276 IsEmpty]: Start isEmpty. Operand 158733 states and 218163 transitions. [2023-12-21 13:28:59,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-21 13:28:59,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:59,024 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] [2023-12-21 13:28:59,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 13:28:59,025 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:59,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:59,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1116201359, now seen corresponding path program 1 times [2023-12-21 13:28:59,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:59,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024461058] [2023-12-21 13:28:59,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:59,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:59,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:59,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024461058] [2023-12-21 13:28:59,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024461058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:59,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:59,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:59,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544306774] [2023-12-21 13:28:59,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:59,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:59,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:59,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:59,363 INFO L87 Difference]: Start difference. First operand 158733 states and 218163 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) [2023-12-21 13:28:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:59,835 INFO L93 Difference]: Finished difference Result 194449 states and 266493 transitions. [2023-12-21 13:28:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:59,835 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 [2023-12-21 13:28:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:00,004 INFO L225 Difference]: With dead ends: 194449 [2023-12-21 13:29:00,004 INFO L226 Difference]: Without dead ends: 123023 [2023-12-21 13:29:00,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:29:00,289 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 355 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:00,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1657 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:29:00,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123023 states. [2023-12-21 13:29:01,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123023 to 122277. [2023-12-21 13:29:01,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122277 states, 122276 states have (on average 1.3521786777454283) internal successors, (165339), 122276 states have internal predecessors, (165339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:01,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122277 states to 122277 states and 165339 transitions. [2023-12-21 13:29:01,784 INFO L78 Accepts]: Start accepts. Automaton has 122277 states and 165339 transitions. Word has length 87 [2023-12-21 13:29:01,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:01,784 INFO L495 AbstractCegarLoop]: Abstraction has 122277 states and 165339 transitions. [2023-12-21 13:29:01,784 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) [2023-12-21 13:29:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 122277 states and 165339 transitions. [2023-12-21 13:29:01,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-21 13:29:01,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:01,788 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] [2023-12-21 13:29:01,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 13:29:01,788 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:01,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:01,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1178562915, now seen corresponding path program 1 times [2023-12-21 13:29:01,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:01,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766148393] [2023-12-21 13:29:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:01,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:02,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:02,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766148393] [2023-12-21 13:29:02,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766148393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:02,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:02,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:02,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604716934] [2023-12-21 13:29:02,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:02,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:29:02,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:02,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:29:02,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:29:02,235 INFO L87 Difference]: Start difference. First operand 122277 states and 165339 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 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) [2023-12-21 13:29:04,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:04,084 INFO L93 Difference]: Finished difference Result 354404 states and 478840 transitions. [2023-12-21 13:29:04,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:29:04,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 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 [2023-12-21 13:29:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:04,547 INFO L225 Difference]: With dead ends: 354404 [2023-12-21 13:29:04,547 INFO L226 Difference]: Without dead ends: 296610 [2023-12-21 13:29:04,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:29:04,635 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4973 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4973 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:04,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4973 Valid, 1231 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:29:04,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296610 states. [2023-12-21 13:29:07,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296610 to 142805. [2023-12-21 13:29:07,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142805 states, 142804 states have (on average 1.343008599198902) internal successors, (191787), 142804 states have internal predecessors, (191787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:07,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142805 states to 142805 states and 191787 transitions. [2023-12-21 13:29:07,833 INFO L78 Accepts]: Start accepts. Automaton has 142805 states and 191787 transitions. Word has length 87 [2023-12-21 13:29:07,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:07,833 INFO L495 AbstractCegarLoop]: Abstraction has 142805 states and 191787 transitions. [2023-12-21 13:29:07,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 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) [2023-12-21 13:29:07,833 INFO L276 IsEmpty]: Start isEmpty. Operand 142805 states and 191787 transitions. [2023-12-21 13:29:07,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-21 13:29:07,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:07,837 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] [2023-12-21 13:29:07,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 13:29:07,837 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:07,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:07,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1033712559, now seen corresponding path program 1 times [2023-12-21 13:29:07,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:07,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487333085] [2023-12-21 13:29:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:07,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:07,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:07,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487333085] [2023-12-21 13:29:07,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487333085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:07,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:07,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564229737] [2023-12-21 13:29:07,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:07,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:07,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:07,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:07,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:07,907 INFO L87 Difference]: Start difference. First operand 142805 states and 191787 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 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) [2023-12-21 13:29:08,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:08,886 INFO L93 Difference]: Finished difference Result 238488 states and 321549 transitions. [2023-12-21 13:29:08,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:08,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 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 [2023-12-21 13:29:08,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:09,165 INFO L225 Difference]: With dead ends: 238488 [2023-12-21 13:29:09,166 INFO L226 Difference]: Without dead ends: 204806 [2023-12-21 13:29:09,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:29:09,205 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 2801 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2801 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:09,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2801 Valid, 2511 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:09,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204806 states. [2023-12-21 13:29:11,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204806 to 170142. [2023-12-21 13:29:11,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170142 states, 170141 states have (on average 1.3408878518405323) internal successors, (228140), 170141 states have internal predecessors, (228140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170142 states to 170142 states and 228140 transitions. [2023-12-21 13:29:11,951 INFO L78 Accepts]: Start accepts. Automaton has 170142 states and 228140 transitions. Word has length 88 [2023-12-21 13:29:11,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:11,951 INFO L495 AbstractCegarLoop]: Abstraction has 170142 states and 228140 transitions. [2023-12-21 13:29:11,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 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) [2023-12-21 13:29:11,951 INFO L276 IsEmpty]: Start isEmpty. Operand 170142 states and 228140 transitions. [2023-12-21 13:29:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 13:29:11,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:11,955 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] [2023-12-21 13:29:11,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-21 13:29:11,969 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:11,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:11,970 INFO L85 PathProgramCache]: Analyzing trace with hash 695293308, now seen corresponding path program 1 times [2023-12-21 13:29:11,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:11,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861865958] [2023-12-21 13:29:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:11,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:12,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:12,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:12,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861865958] [2023-12-21 13:29:12,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861865958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:12,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:12,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:12,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939384645] [2023-12-21 13:29:12,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:12,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:12,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:12,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:12,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:12,096 INFO L87 Difference]: Start difference. First operand 170142 states and 228140 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 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) [2023-12-21 13:29:13,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:13,200 INFO L93 Difference]: Finished difference Result 245716 states and 330909 transitions. [2023-12-21 13:29:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:13,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 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 [2023-12-21 13:29:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:13,532 INFO L225 Difference]: With dead ends: 245716 [2023-12-21 13:29:13,532 INFO L226 Difference]: Without dead ends: 222246 [2023-12-21 13:29:13,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:29:13,576 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 2796 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:13,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2796 Valid, 2702 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:13,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222246 states. [2023-12-21 13:29:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222246 to 193218. [2023-12-21 13:29:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193218 states, 193217 states have (on average 1.34145546199351) internal successors, (259192), 193217 states have internal predecessors, (259192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193218 states to 193218 states and 259192 transitions. [2023-12-21 13:29:16,360 INFO L78 Accepts]: Start accepts. Automaton has 193218 states and 259192 transitions. Word has length 89 [2023-12-21 13:29:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:16,360 INFO L495 AbstractCegarLoop]: Abstraction has 193218 states and 259192 transitions. [2023-12-21 13:29:16,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 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) [2023-12-21 13:29:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 193218 states and 259192 transitions. [2023-12-21 13:29:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:29:16,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:16,366 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] [2023-12-21 13:29:16,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 13:29:16,366 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:16,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:16,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1272449462, now seen corresponding path program 1 times [2023-12-21 13:29:16,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:16,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403972356] [2023-12-21 13:29:16,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:16,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:16,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:16,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403972356] [2023-12-21 13:29:16,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403972356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:16,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:16,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:16,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387931062] [2023-12-21 13:29:16,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:16,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:16,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:16,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:16,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:16,844 INFO L87 Difference]: Start difference. First operand 193218 states and 259192 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) [2023-12-21 13:29:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:18,022 INFO L93 Difference]: Finished difference Result 268006 states and 360524 transitions. [2023-12-21 13:29:18,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:18,023 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 [2023-12-21 13:29:18,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:18,413 INFO L225 Difference]: With dead ends: 268006 [2023-12-21 13:29:18,413 INFO L226 Difference]: Without dead ends: 221464 [2023-12-21 13:29:18,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:29:18,471 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 2858 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:18,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 2527 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221464 states. [2023-12-21 13:29:20,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221464 to 192438. [2023-12-21 13:29:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192438 states, 192437 states have (on average 1.340137291685071) internal successors, (257892), 192437 states have internal predecessors, (257892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192438 states to 192438 states and 257892 transitions. [2023-12-21 13:29:21,291 INFO L78 Accepts]: Start accepts. Automaton has 192438 states and 257892 transitions. Word has length 93 [2023-12-21 13:29:21,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:21,291 INFO L495 AbstractCegarLoop]: Abstraction has 192438 states and 257892 transitions. [2023-12-21 13:29:21,291 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) [2023-12-21 13:29:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 192438 states and 257892 transitions. [2023-12-21 13:29:21,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:29:21,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:21,296 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] [2023-12-21 13:29:21,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-21 13:29:21,296 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:21,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:21,297 INFO L85 PathProgramCache]: Analyzing trace with hash 745133160, now seen corresponding path program 1 times [2023-12-21 13:29:21,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:21,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803781093] [2023-12-21 13:29:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:21,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:21,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:21,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:21,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803781093] [2023-12-21 13:29:21,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803781093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:21,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:21,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:21,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89313766] [2023-12-21 13:29:21,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:21,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:21,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:21,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:21,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:21,369 INFO L87 Difference]: Start difference. First operand 192438 states and 257892 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) [2023-12-21 13:29:22,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:22,556 INFO L93 Difference]: Finished difference Result 297556 states and 400721 transitions. [2023-12-21 13:29:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:22,557 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 [2023-12-21 13:29:22,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:22,965 INFO L225 Difference]: With dead ends: 297556 [2023-12-21 13:29:22,965 INFO L226 Difference]: Without dead ends: 257634 [2023-12-21 13:29:23,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:29:23,031 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 2770 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2770 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:23,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2770 Valid, 2584 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257634 states. [2023-12-21 13:29:25,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257634 to 228606. [2023-12-21 13:29:25,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228606 states, 228605 states have (on average 1.3400056866647712) internal successors, (306332), 228605 states have internal predecessors, (306332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:26,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228606 states to 228606 states and 306332 transitions. [2023-12-21 13:29:26,708 INFO L78 Accepts]: Start accepts. Automaton has 228606 states and 306332 transitions. Word has length 93 [2023-12-21 13:29:26,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:26,708 INFO L495 AbstractCegarLoop]: Abstraction has 228606 states and 306332 transitions. [2023-12-21 13:29:26,708 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) [2023-12-21 13:29:26,708 INFO L276 IsEmpty]: Start isEmpty. Operand 228606 states and 306332 transitions. [2023-12-21 13:29:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 13:29:26,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:26,713 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] [2023-12-21 13:29:26,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 13:29:26,713 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:26,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:26,714 INFO L85 PathProgramCache]: Analyzing trace with hash -13442709, now seen corresponding path program 1 times [2023-12-21 13:29:26,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:26,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286932725] [2023-12-21 13:29:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:26,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:26,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286932725] [2023-12-21 13:29:26,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286932725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:26,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:26,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:26,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676177860] [2023-12-21 13:29:26,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:26,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:26,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:26,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:26,801 INFO L87 Difference]: Start difference. First operand 228606 states and 306332 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 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) [2023-12-21 13:29:28,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:28,047 INFO L93 Difference]: Finished difference Result 317522 states and 426168 transitions. [2023-12-21 13:29:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:28,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 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 [2023-12-21 13:29:28,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:28,427 INFO L225 Difference]: With dead ends: 317522 [2023-12-21 13:29:28,427 INFO L226 Difference]: Without dead ends: 256504 [2023-12-21 13:29:28,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:29:28,801 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 2807 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2807 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:28,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2807 Valid, 2711 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:28,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256504 states. [2023-12-21 13:29:31,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256504 to 227478. [2023-12-21 13:29:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227478 states, 227477 states have (on average 1.3383858587901194) internal successors, (304452), 227477 states have internal predecessors, (304452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:31,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227478 states to 227478 states and 304452 transitions. [2023-12-21 13:29:31,892 INFO L78 Accepts]: Start accepts. Automaton has 227478 states and 304452 transitions. Word has length 94 [2023-12-21 13:29:31,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:31,893 INFO L495 AbstractCegarLoop]: Abstraction has 227478 states and 304452 transitions. [2023-12-21 13:29:31,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 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) [2023-12-21 13:29:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 227478 states and 304452 transitions. [2023-12-21 13:29:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 13:29:31,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:31,898 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] [2023-12-21 13:29:31,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 13:29:31,898 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:31,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:31,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1142055644, now seen corresponding path program 1 times [2023-12-21 13:29:31,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:31,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134857805] [2023-12-21 13:29:31,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:31,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:31,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:31,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134857805] [2023-12-21 13:29:31,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134857805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:31,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:31,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:31,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141245971] [2023-12-21 13:29:31,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:31,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:29:31,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:29:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:29:31,984 INFO L87 Difference]: Start difference. First operand 227478 states and 304452 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 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) [2023-12-21 13:29:33,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:33,959 INFO L93 Difference]: Finished difference Result 267369 states and 357486 transitions. [2023-12-21 13:29:33,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:29:33,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 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 [2023-12-21 13:29:33,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:34,334 INFO L225 Difference]: With dead ends: 267369 [2023-12-21 13:29:34,334 INFO L226 Difference]: Without dead ends: 261659 [2023-12-21 13:29:34,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:29:34,356 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 4155 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:34,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4155 Valid, 1180 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:29:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261659 states. [2023-12-21 13:29:37,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261659 to 227476. [2023-12-21 13:29:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227476 states, 227475 states have (on average 1.3383712495878668) internal successors, (304446), 227475 states have internal predecessors, (304446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:38,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227476 states to 227476 states and 304446 transitions. [2023-12-21 13:29:38,291 INFO L78 Accepts]: Start accepts. Automaton has 227476 states and 304446 transitions. Word has length 94 [2023-12-21 13:29:38,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:38,292 INFO L495 AbstractCegarLoop]: Abstraction has 227476 states and 304446 transitions. [2023-12-21 13:29:38,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 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) [2023-12-21 13:29:38,292 INFO L276 IsEmpty]: Start isEmpty. Operand 227476 states and 304446 transitions. [2023-12-21 13:29:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 13:29:38,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:38,298 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] [2023-12-21 13:29:38,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-21 13:29:38,298 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:38,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:38,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1818123850, now seen corresponding path program 1 times [2023-12-21 13:29:38,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:38,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541116815] [2023-12-21 13:29:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:38,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:38,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:38,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:38,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541116815] [2023-12-21 13:29:38,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541116815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:38,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:38,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:38,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417267619] [2023-12-21 13:29:38,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:38,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:29:38,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:29:38,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:29:38,380 INFO L87 Difference]: Start difference. First operand 227476 states and 304446 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 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) [2023-12-21 13:29:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:40,385 INFO L93 Difference]: Finished difference Result 435074 states and 579271 transitions. [2023-12-21 13:29:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:29:40,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 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 [2023-12-21 13:29:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:40,870 INFO L225 Difference]: With dead ends: 435074 [2023-12-21 13:29:40,871 INFO L226 Difference]: Without dead ends: 303576 [2023-12-21 13:29:41,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:29:41,341 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 4265 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4265 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:41,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4265 Valid, 1129 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:29:41,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303576 states. [2023-12-21 13:29:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303576 to 227476. [2023-12-21 13:29:44,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227476 states, 227475 states have (on average 1.3277151335311572) internal successors, (302022), 227475 states have internal predecessors, (302022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227476 states to 227476 states and 302022 transitions. [2023-12-21 13:29:45,217 INFO L78 Accepts]: Start accepts. Automaton has 227476 states and 302022 transitions. Word has length 95 [2023-12-21 13:29:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:45,218 INFO L495 AbstractCegarLoop]: Abstraction has 227476 states and 302022 transitions. [2023-12-21 13:29:45,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 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) [2023-12-21 13:29:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 227476 states and 302022 transitions. [2023-12-21 13:29:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 13:29:45,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:45,225 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] [2023-12-21 13:29:45,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-21 13:29:45,225 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:45,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:45,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1801493647, now seen corresponding path program 1 times [2023-12-21 13:29:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:45,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283193314] [2023-12-21 13:29:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:45,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:45,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:45,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283193314] [2023-12-21 13:29:45,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283193314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:45,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:45,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:45,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647800687] [2023-12-21 13:29:45,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:45,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:45,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:45,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:45,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:45,363 INFO L87 Difference]: Start difference. First operand 227476 states and 302022 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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) [2023-12-21 13:29:46,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:46,629 INFO L93 Difference]: Finished difference Result 331272 states and 440954 transitions. [2023-12-21 13:29:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:46,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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 [2023-12-21 13:29:46,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:47,190 INFO L225 Difference]: With dead ends: 331272 [2023-12-21 13:29:47,190 INFO L226 Difference]: Without dead ends: 255182 [2023-12-21 13:29:47,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:29:47,307 INFO L413 NwaCegarLoop]: 1092 mSDtfsCounter, 2718 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:47,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2718 Valid, 2769 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:47,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255182 states. [2023-12-21 13:29:49,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255182 to 226156. [2023-12-21 13:29:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226156 states, 226155 states have (on average 1.3257367734518362) internal successors, (299822), 226155 states have internal predecessors, (299822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226156 states to 226156 states and 299822 transitions. [2023-12-21 13:29:50,846 INFO L78 Accepts]: Start accepts. Automaton has 226156 states and 299822 transitions. Word has length 96 [2023-12-21 13:29:50,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:50,846 INFO L495 AbstractCegarLoop]: Abstraction has 226156 states and 299822 transitions. [2023-12-21 13:29:50,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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) [2023-12-21 13:29:50,846 INFO L276 IsEmpty]: Start isEmpty. Operand 226156 states and 299822 transitions. [2023-12-21 13:29:50,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 13:29:50,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:50,853 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] [2023-12-21 13:29:50,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-21 13:29:50,853 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:50,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:50,854 INFO L85 PathProgramCache]: Analyzing trace with hash 445223460, now seen corresponding path program 1 times [2023-12-21 13:29:50,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:50,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386110847] [2023-12-21 13:29:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:50,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:50,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:50,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386110847] [2023-12-21 13:29:50,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386110847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:50,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:50,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:50,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640810355] [2023-12-21 13:29:50,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:50,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:50,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:50,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:50,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:50,947 INFO L87 Difference]: Start difference. First operand 226156 states and 299822 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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) [2023-12-21 13:29:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:52,279 INFO L93 Difference]: Finished difference Result 315072 states and 418850 transitions. [2023-12-21 13:29:52,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:52,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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 [2023-12-21 13:29:52,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:52,746 INFO L225 Difference]: With dead ends: 315072 [2023-12-21 13:29:52,746 INFO L226 Difference]: Without dead ends: 254054 [2023-12-21 13:29:52,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:29:52,844 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 2793 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:52,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 2508 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254054 states. [2023-12-21 13:29:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254054 to 225028. [2023-12-21 13:29:55,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225028 states, 225027 states have (on average 1.3240277833326668) internal successors, (297942), 225027 states have internal predecessors, (297942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225028 states to 225028 states and 297942 transitions. [2023-12-21 13:29:56,609 INFO L78 Accepts]: Start accepts. Automaton has 225028 states and 297942 transitions. Word has length 96 [2023-12-21 13:29:56,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:56,610 INFO L495 AbstractCegarLoop]: Abstraction has 225028 states and 297942 transitions. [2023-12-21 13:29:56,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 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) [2023-12-21 13:29:56,610 INFO L276 IsEmpty]: Start isEmpty. Operand 225028 states and 297942 transitions. [2023-12-21 13:29:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 13:29:56,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:56,617 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] [2023-12-21 13:29:56,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 13:29:56,618 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:56,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:56,619 INFO L85 PathProgramCache]: Analyzing trace with hash 161793450, now seen corresponding path program 1 times [2023-12-21 13:29:56,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:56,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656208043] [2023-12-21 13:29:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:56,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:56,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:56,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:56,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656208043] [2023-12-21 13:29:56,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656208043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:56,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:56,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:56,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389883590] [2023-12-21 13:29:56,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:56,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:29:56,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:56,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:29:56,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:29:56,724 INFO L87 Difference]: Start difference. First operand 225028 states and 297942 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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) [2023-12-21 13:29:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:58,423 INFO L93 Difference]: Finished difference Result 264903 states and 350792 transitions. [2023-12-21 13:29:58,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:29:58,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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 [2023-12-21 13:29:58,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:58,828 INFO L225 Difference]: With dead ends: 264903 [2023-12-21 13:29:58,828 INFO L226 Difference]: Without dead ends: 259193 [2023-12-21 13:29:58,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:29:58,899 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 4091 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:58,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 1209 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:29:59,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259193 states. [2023-12-21 13:30:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259193 to 225026. [2023-12-21 13:30:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225026 states, 225025 states have (on average 1.3240128874569492) internal successors, (297936), 225025 states have internal predecessors, (297936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225026 states to 225026 states and 297936 transitions. [2023-12-21 13:30:03,156 INFO L78 Accepts]: Start accepts. Automaton has 225026 states and 297936 transitions. Word has length 97 [2023-12-21 13:30:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:03,156 INFO L495 AbstractCegarLoop]: Abstraction has 225026 states and 297936 transitions. [2023-12-21 13:30:03,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 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) [2023-12-21 13:30:03,156 INFO L276 IsEmpty]: Start isEmpty. Operand 225026 states and 297936 transitions. [2023-12-21 13:30:03,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 13:30:03,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:03,163 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] [2023-12-21 13:30:03,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-21 13:30:03,163 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:03,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:03,164 INFO L85 PathProgramCache]: Analyzing trace with hash -169124036, now seen corresponding path program 1 times [2023-12-21 13:30:03,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:03,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440765093] [2023-12-21 13:30:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:03,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:03,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440765093] [2023-12-21 13:30:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440765093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:30:03,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:30:03,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:30:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036625750] [2023-12-21 13:30:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:30:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:30:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:03,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:30:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:30:03,208 INFO L87 Difference]: Start difference. First operand 225026 states and 297936 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) [2023-12-21 13:30:04,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:04,461 INFO L93 Difference]: Finished difference Result 302406 states and 399578 transitions. [2023-12-21 13:30:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:30:04,461 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 [2023-12-21 13:30:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:04,763 INFO L225 Difference]: With dead ends: 302406 [2023-12-21 13:30:04,764 INFO L226 Difference]: Without dead ends: 147642 [2023-12-21 13:30:04,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:30:04,871 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 375 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:04,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1567 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:30:04,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147642 states. [2023-12-21 13:30:06,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147642 to 123079. [2023-12-21 13:30:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123079 states, 123078 states have (on average 1.3080891792196818) internal successors, (160997), 123078 states have internal predecessors, (160997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123079 states to 123079 states and 160997 transitions. [2023-12-21 13:30:06,825 INFO L78 Accepts]: Start accepts. Automaton has 123079 states and 160997 transitions. Word has length 97 [2023-12-21 13:30:06,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:06,825 INFO L495 AbstractCegarLoop]: Abstraction has 123079 states and 160997 transitions. [2023-12-21 13:30:06,826 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) [2023-12-21 13:30:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 123079 states and 160997 transitions. [2023-12-21 13:30:06,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:30:06,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:06,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:30:06,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-21 13:30:06,840 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:06,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash 522234203, now seen corresponding path program 1 times [2023-12-21 13:30:06,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:06,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343786925] [2023-12-21 13:30:06,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:06,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:07,085 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:07,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:07,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343786925] [2023-12-21 13:30:07,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343786925] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:30:07,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891291925] [2023-12-21 13:30:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:07,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:30:07,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:30:07,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:30:07,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 13:30:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:07,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 13:30:07,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:30:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:07,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:30:08,675 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:08,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891291925] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:30:08,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:30:08,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2023-12-21 13:30:08,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489511891] [2023-12-21 13:30:08,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:30:08,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:30:08,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:08,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:30:08,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:30:08,677 INFO L87 Difference]: Start difference. First operand 123079 states and 160997 transitions. Second operand has 23 states, 23 states have (on average 11.782608695652174) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:12,276 INFO L93 Difference]: Finished difference Result 355974 states and 459371 transitions. [2023-12-21 13:30:12,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-21 13:30:12,276 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.782608695652174) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-21 13:30:12,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:12,999 INFO L225 Difference]: With dead ends: 355974 [2023-12-21 13:30:12,999 INFO L226 Difference]: Without dead ends: 315940 [2023-12-21 13:30:13,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=967, Invalid=2815, Unknown=0, NotChecked=0, Total=3782 [2023-12-21 13:30:13,143 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 10073 mSDsluCounter, 4205 mSDsCounter, 0 mSdLazyCounter, 4474 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10073 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 4510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:13,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10073 Valid, 4865 Invalid, 4510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4474 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 13:30:13,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315940 states. [2023-12-21 13:30:15,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315940 to 178829. [2023-12-21 13:30:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178829 states, 178828 states have (on average 1.3045608070324557) internal successors, (233292), 178828 states have internal predecessors, (233292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:16,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178829 states to 178829 states and 233292 transitions. [2023-12-21 13:30:16,159 INFO L78 Accepts]: Start accepts. Automaton has 178829 states and 233292 transitions. Word has length 107 [2023-12-21 13:30:16,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:16,159 INFO L495 AbstractCegarLoop]: Abstraction has 178829 states and 233292 transitions. [2023-12-21 13:30:16,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.782608695652174) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:16,160 INFO L276 IsEmpty]: Start isEmpty. Operand 178829 states and 233292 transitions. [2023-12-21 13:30:16,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 13:30:16,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:16,182 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:30:16,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 13:30:16,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-12-21 13:30:16,388 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:16,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:16,389 INFO L85 PathProgramCache]: Analyzing trace with hash -783461658, now seen corresponding path program 1 times [2023-12-21 13:30:16,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:16,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186950540] [2023-12-21 13:30:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:16,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:16,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:16,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186950540] [2023-12-21 13:30:16,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186950540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:30:16,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:30:16,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:30:16,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977102553] [2023-12-21 13:30:16,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:30:16,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:30:16,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:16,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:30:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:30:16,935 INFO L87 Difference]: Start difference. First operand 178829 states and 233292 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:18,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:18,251 INFO L93 Difference]: Finished difference Result 356512 states and 465289 transitions. [2023-12-21 13:30:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:30:18,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2023-12-21 13:30:18,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:18,537 INFO L225 Difference]: With dead ends: 356512 [2023-12-21 13:30:18,537 INFO L226 Difference]: Without dead ends: 178831 [2023-12-21 13:30:18,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:30:18,625 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 444 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:18,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1501 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:30:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178831 states. [2023-12-21 13:30:20,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178831 to 177133. [2023-12-21 13:30:20,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177133 states, 177132 states have (on average 1.291940473770973) internal successors, (228844), 177132 states have internal predecessors, (228844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177133 states to 177133 states and 228844 transitions. [2023-12-21 13:30:20,986 INFO L78 Accepts]: Start accepts. Automaton has 177133 states and 228844 transitions. Word has length 108 [2023-12-21 13:30:20,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:20,987 INFO L495 AbstractCegarLoop]: Abstraction has 177133 states and 228844 transitions. [2023-12-21 13:30:20,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 177133 states and 228844 transitions. [2023-12-21 13:30:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 13:30:21,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:21,011 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:30:21,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-21 13:30:21,011 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:21,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:21,011 INFO L85 PathProgramCache]: Analyzing trace with hash -248925345, now seen corresponding path program 1 times [2023-12-21 13:30:21,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:21,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287731367] [2023-12-21 13:30:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:21,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 13:30:21,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:21,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287731367] [2023-12-21 13:30:21,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287731367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:30:21,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:30:21,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:30:21,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202490320] [2023-12-21 13:30:21,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:30:21,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:30:21,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:21,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:30:21,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:30:21,172 INFO L87 Difference]: Start difference. First operand 177133 states and 228844 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:23,597 INFO L93 Difference]: Finished difference Result 272467 states and 350725 transitions. [2023-12-21 13:30:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:30:23,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 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 108 [2023-12-21 13:30:23,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:24,107 INFO L225 Difference]: With dead ends: 272467 [2023-12-21 13:30:24,107 INFO L226 Difference]: Without dead ends: 254735 [2023-12-21 13:30:24,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:30:24,235 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 3291 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3291 SdHoareTripleChecker+Valid, 2650 SdHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:24,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3291 Valid, 2650 Invalid, 2473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:30:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254735 states. [2023-12-21 13:30:26,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254735 to 177123. [2023-12-21 13:30:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177123 states, 177122 states have (on average 1.2919513103962241) internal successors, (228833), 177122 states have internal predecessors, (228833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:27,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177123 states to 177123 states and 228833 transitions. [2023-12-21 13:30:27,257 INFO L78 Accepts]: Start accepts. Automaton has 177123 states and 228833 transitions. Word has length 108 [2023-12-21 13:30:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:27,258 INFO L495 AbstractCegarLoop]: Abstraction has 177123 states and 228833 transitions. [2023-12-21 13:30:27,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:27,258 INFO L276 IsEmpty]: Start isEmpty. Operand 177123 states and 228833 transitions. [2023-12-21 13:30:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 13:30:27,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:27,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:30:27,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-21 13:30:27,277 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:27,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:27,278 INFO L85 PathProgramCache]: Analyzing trace with hash 696752016, now seen corresponding path program 1 times [2023-12-21 13:30:27,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:27,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007627300] [2023-12-21 13:30:27,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:27,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 13:30:27,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:27,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007627300] [2023-12-21 13:30:27,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007627300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:30:27,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:30:27,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:30:27,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330757162] [2023-12-21 13:30:27,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:30:27,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:30:27,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:27,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:30:27,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:30:27,451 INFO L87 Difference]: Start difference. First operand 177123 states and 228833 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:29,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:29,467 INFO L93 Difference]: Finished difference Result 331199 states and 424898 transitions. [2023-12-21 13:30:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 13:30:29,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 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 109 [2023-12-21 13:30:29,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:30,272 INFO L225 Difference]: With dead ends: 331199 [2023-12-21 13:30:30,272 INFO L226 Difference]: Without dead ends: 313597 [2023-12-21 13:30:30,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:30:30,341 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 3079 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3079 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:30,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3079 Valid, 2552 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:30:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313597 states. [2023-12-21 13:30:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313597 to 177107. [2023-12-21 13:30:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177107 states, 177106 states have (on average 1.29197203934367) internal successors, (228816), 177106 states have internal predecessors, (228816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177107 states to 177107 states and 228816 transitions. [2023-12-21 13:30:33,597 INFO L78 Accepts]: Start accepts. Automaton has 177107 states and 228816 transitions. Word has length 109 [2023-12-21 13:30:33,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:33,597 INFO L495 AbstractCegarLoop]: Abstraction has 177107 states and 228816 transitions. [2023-12-21 13:30:33,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 177107 states and 228816 transitions. [2023-12-21 13:30:33,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 13:30:33,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:33,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:30:33,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-21 13:30:33,641 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:33,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:33,641 INFO L85 PathProgramCache]: Analyzing trace with hash 937602903, now seen corresponding path program 1 times [2023-12-21 13:30:33,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:33,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664319506] [2023-12-21 13:30:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:33,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:33,792 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:33,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:33,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664319506] [2023-12-21 13:30:33,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664319506] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:30:33,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730777523] [2023-12-21 13:30:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:33,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:30:33,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:30:33,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:30:33,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 13:30:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:34,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-21 13:30:34,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:30:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:34,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:30:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:34,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730777523] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:30:34,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:30:34,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 8] total 14 [2023-12-21 13:30:34,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651845982] [2023-12-21 13:30:34,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:30:34,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:30:34,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:34,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:30:34,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:30:34,765 INFO L87 Difference]: Start difference. First operand 177107 states and 228816 transitions. Second operand has 14 states, 14 states have (on average 16.857142857142858) internal successors, (236), 14 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:39,238 INFO L93 Difference]: Finished difference Result 1061997 states and 1375138 transitions. [2023-12-21 13:30:39,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:30:39,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.857142857142858) internal successors, (236), 14 states have internal predecessors, (236), 0 states have call successors, (0), 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 109 [2023-12-21 13:30:39,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:41,944 INFO L225 Difference]: With dead ends: 1061997 [2023-12-21 13:30:41,944 INFO L226 Difference]: Without dead ends: 886012 [2023-12-21 13:30:42,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:30:42,364 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 3675 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3675 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:42,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3675 Valid, 5631 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:30:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886012 states. [2023-12-21 13:30:51,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886012 to 721286. [2023-12-21 13:30:51,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721286 states, 721285 states have (on average 1.285580595742321) internal successors, (927270), 721285 states have internal predecessors, (927270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721286 states to 721286 states and 927270 transitions. [2023-12-21 13:30:54,452 INFO L78 Accepts]: Start accepts. Automaton has 721286 states and 927270 transitions. Word has length 109 [2023-12-21 13:30:54,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:54,453 INFO L495 AbstractCegarLoop]: Abstraction has 721286 states and 927270 transitions. [2023-12-21 13:30:54,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.857142857142858) internal successors, (236), 14 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 721286 states and 927270 transitions. [2023-12-21 13:30:54,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 13:30:54,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:54,475 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] [2023-12-21 13:30:54,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 13:30:54,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-12-21 13:30:54,683 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:54,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:54,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1688769243, now seen corresponding path program 1 times [2023-12-21 13:30:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:54,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201629286] [2023-12-21 13:30:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:54,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-21 13:30:54,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:54,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201629286] [2023-12-21 13:30:54,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201629286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:30:54,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:30:54,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:30:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209403648] [2023-12-21 13:30:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:30:54,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:30:54,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:54,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:30:54,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:30:54,770 INFO L87 Difference]: Start difference. First operand 721286 states and 927270 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:58,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:58,407 INFO L93 Difference]: Finished difference Result 928753 states and 1192460 transitions. [2023-12-21 13:30:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:30:58,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 110 [2023-12-21 13:30:58,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:59,897 INFO L225 Difference]: With dead ends: 928753 [2023-12-21 13:30:59,897 INFO L226 Difference]: Without dead ends: 491904 [2023-12-21 13:31:00,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:31:00,299 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 341 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:31:00,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1569 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:31:00,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491904 states. [2023-12-21 13:31:05,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491904 to 483699. [2023-12-21 13:31:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483699 states, 483698 states have (on average 1.2742268936402465) internal successors, (616341), 483698 states have internal predecessors, (616341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483699 states to 483699 states and 616341 transitions. [2023-12-21 13:31:07,623 INFO L78 Accepts]: Start accepts. Automaton has 483699 states and 616341 transitions. Word has length 110 [2023-12-21 13:31:07,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:31:07,648 INFO L495 AbstractCegarLoop]: Abstraction has 483699 states and 616341 transitions. [2023-12-21 13:31:07,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:07,648 INFO L276 IsEmpty]: Start isEmpty. Operand 483699 states and 616341 transitions. [2023-12-21 13:31:07,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 13:31:07,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:31:07,683 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:31:07,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-21 13:31:07,684 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:31:07,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:31:07,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1126922839, now seen corresponding path program 1 times [2023-12-21 13:31:07,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:31:07,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996497813] [2023-12-21 13:31:07,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:07,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:31:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:07,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:31:07,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996497813] [2023-12-21 13:31:07,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996497813] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:31:07,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813615260] [2023-12-21 13:31:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:07,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:31:07,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:31:07,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:31:07,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 13:31:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:08,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 13:31:08,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:31:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:08,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:31:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:08,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813615260] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:31:08,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:31:08,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-21 13:31:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184007834] [2023-12-21 13:31:08,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:31:08,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:31:08,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:31:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:31:08,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:31:08,339 INFO L87 Difference]: Start difference. First operand 483699 states and 616341 transitions. Second operand has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:31:15,966 INFO L93 Difference]: Finished difference Result 1824585 states and 2320785 transitions. [2023-12-21 13:31:15,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:31:15,967 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 0 states have call successors, (0), 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 112 [2023-12-21 13:31:15,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:31:20,613 INFO L225 Difference]: With dead ends: 1824585 [2023-12-21 13:31:20,614 INFO L226 Difference]: Without dead ends: 1342245 [2023-12-21 13:31:21,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 215 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:31:21,154 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 7819 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7819 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:31:21,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7819 Valid, 2545 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:31:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342245 states. [2023-12-21 13:31:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342245 to 707418. [2023-12-21 13:31:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707418 states, 707417 states have (on average 1.2613903821932466) internal successors, (892329), 707417 states have internal predecessors, (892329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:34,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707418 states to 707418 states and 892329 transitions. [2023-12-21 13:31:34,818 INFO L78 Accepts]: Start accepts. Automaton has 707418 states and 892329 transitions. Word has length 112 [2023-12-21 13:31:34,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:31:34,818 INFO L495 AbstractCegarLoop]: Abstraction has 707418 states and 892329 transitions. [2023-12-21 13:31:34,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:34,818 INFO L276 IsEmpty]: Start isEmpty. Operand 707418 states and 892329 transitions. [2023-12-21 13:31:34,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 13:31:34,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:31:34,850 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:31:34,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-21 13:31:35,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:31:35,058 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:31:35,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:31:35,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1951041572, now seen corresponding path program 1 times [2023-12-21 13:31:35,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:31:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845724753] [2023-12-21 13:31:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:35,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:31:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 13:31:35,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:31:35,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845724753] [2023-12-21 13:31:35,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845724753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:31:35,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:31:35,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:31:35,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92394940] [2023-12-21 13:31:35,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:31:35,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:31:35,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:31:35,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:31:35,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:31:35,103 INFO L87 Difference]: Start difference. First operand 707418 states and 892329 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:39,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:31:39,242 INFO L93 Difference]: Finished difference Result 1047462 states and 1317975 transitions. [2023-12-21 13:31:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:31:39,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-21 13:31:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:31:40,856 INFO L225 Difference]: With dead ends: 1047462 [2023-12-21 13:31:40,856 INFO L226 Difference]: Without dead ends: 534263 [2023-12-21 13:31:41,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:31:41,032 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 395 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:31:41,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1516 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:31:41,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534263 states. [2023-12-21 13:31:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534263 to 533619. [2023-12-21 13:31:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533619 states, 533618 states have (on average 1.2523734206867085) internal successors, (668289), 533618 states have internal predecessors, (668289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:48,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533619 states to 533619 states and 668289 transitions. [2023-12-21 13:31:48,185 INFO L78 Accepts]: Start accepts. Automaton has 533619 states and 668289 transitions. Word has length 116 [2023-12-21 13:31:48,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:31:48,185 INFO L495 AbstractCegarLoop]: Abstraction has 533619 states and 668289 transitions. [2023-12-21 13:31:48,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 533619 states and 668289 transitions. [2023-12-21 13:31:48,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 13:31:48,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:31:48,206 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:31:48,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-21 13:31:48,206 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:31:48,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:31:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1471887711, now seen corresponding path program 1 times [2023-12-21 13:31:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:31:48,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858892692] [2023-12-21 13:31:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:48,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:31:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:48,279 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:31:48,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:31:48,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858892692] [2023-12-21 13:31:48,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858892692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:31:48,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:31:48,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:31:48,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493193679] [2023-12-21 13:31:48,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:31:48,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:31:48,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:31:48,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:31:48,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:31:48,281 INFO L87 Difference]: Start difference. First operand 533619 states and 668289 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:51,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:31:51,889 INFO L93 Difference]: Finished difference Result 813497 states and 1014510 transitions. [2023-12-21 13:31:51,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 13:31:51,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-12-21 13:31:51,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:31:53,765 INFO L225 Difference]: With dead ends: 813497 [2023-12-21 13:31:53,765 INFO L226 Difference]: Without dead ends: 785132 [2023-12-21 13:31:53,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:31:53,881 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 4055 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4055 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:31:53,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4055 Valid, 1185 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:31:54,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785132 states. [2023-12-21 13:32:01,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785132 to 528046. [2023-12-21 13:32:01,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528046 states, 528045 states have (on average 1.2528913255499057) internal successors, (661583), 528045 states have internal predecessors, (661583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:03,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528046 states to 528046 states and 661583 transitions. [2023-12-21 13:32:03,800 INFO L78 Accepts]: Start accepts. Automaton has 528046 states and 661583 transitions. Word has length 117 [2023-12-21 13:32:03,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:32:03,800 INFO L495 AbstractCegarLoop]: Abstraction has 528046 states and 661583 transitions. [2023-12-21 13:32:03,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:03,800 INFO L276 IsEmpty]: Start isEmpty. Operand 528046 states and 661583 transitions. [2023-12-21 13:32:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 13:32:03,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:32:03,830 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:32:03,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-21 13:32:03,830 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:32:03,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:32:03,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1211371268, now seen corresponding path program 1 times [2023-12-21 13:32:03,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:32:03,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421905728] [2023-12-21 13:32:03,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:32:03,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:32:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:32:03,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:32:03,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:32:03,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421905728] [2023-12-21 13:32:03,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421905728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:32:03,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:32:03,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:32:03,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690266261] [2023-12-21 13:32:03,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:32:03,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:32:03,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:32:03,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:32:03,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:32:03,888 INFO L87 Difference]: Start difference. First operand 528046 states and 661583 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:07,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:32:07,744 INFO L93 Difference]: Finished difference Result 1011915 states and 1264864 transitions. [2023-12-21 13:32:07,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:32:07,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2023-12-21 13:32:07,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:32:09,379 INFO L225 Difference]: With dead ends: 1011915 [2023-12-21 13:32:09,380 INFO L226 Difference]: Without dead ends: 485242 [2023-12-21 13:32:09,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:32:09,714 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 322 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:32:09,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1535 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:32:10,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485242 states. [2023-12-21 13:32:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485242 to 470475. [2023-12-21 13:32:15,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470475 states, 470474 states have (on average 1.231978812856821) internal successors, (579614), 470474 states have internal predecessors, (579614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470475 states to 470475 states and 579614 transitions. [2023-12-21 13:32:17,799 INFO L78 Accepts]: Start accepts. Automaton has 470475 states and 579614 transitions. Word has length 120 [2023-12-21 13:32:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:32:17,799 INFO L495 AbstractCegarLoop]: Abstraction has 470475 states and 579614 transitions. [2023-12-21 13:32:17,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 470475 states and 579614 transitions. [2023-12-21 13:32:17,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 13:32:17,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:32:17,819 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] [2023-12-21 13:32:17,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-21 13:32:17,819 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:32:17,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:32:17,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1449847867, now seen corresponding path program 1 times [2023-12-21 13:32:17,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:32:17,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744076411] [2023-12-21 13:32:17,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:32:17,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:32:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:32:17,900 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:32:17,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:32:17,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744076411] [2023-12-21 13:32:17,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744076411] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:32:17,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341362865] [2023-12-21 13:32:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:32:17,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:32:17,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:32:17,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:32:17,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 13:32:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:32:18,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 13:32:18,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:32:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:32:18,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:32:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:32:18,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341362865] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:32:18,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:32:18,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-21 13:32:18,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045898972] [2023-12-21 13:32:18,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:32:18,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:32:18,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:32:18,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:32:18,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:32:18,864 INFO L87 Difference]: Start difference. First operand 470475 states and 579614 transitions. Second operand has 14 states, 14 states have (on average 23.714285714285715) internal successors, (332), 14 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:23,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:32:23,696 INFO L93 Difference]: Finished difference Result 1032466 states and 1270797 transitions. [2023-12-21 13:32:23,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:32:23,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 23.714285714285715) internal successors, (332), 14 states have internal predecessors, (332), 0 states have call successors, (0), 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 [2023-12-21 13:32:23,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:32:24,925 INFO L225 Difference]: With dead ends: 1032466 [2023-12-21 13:32:24,925 INFO L226 Difference]: Without dead ends: 569332 [2023-12-21 13:32:25,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:32:25,151 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 5744 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:32:25,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5744 Valid, 2547 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 13:32:25,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569332 states. [2023-12-21 13:32:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569332 to 418770. [2023-12-21 13:32:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418770 states, 418769 states have (on average 1.2102065816715182) internal successors, (506797), 418769 states have internal predecessors, (506797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418770 states to 418770 states and 506797 transitions. [2023-12-21 13:32:32,121 INFO L78 Accepts]: Start accepts. Automaton has 418770 states and 506797 transitions. Word has length 121 [2023-12-21 13:32:32,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:32:32,121 INFO L495 AbstractCegarLoop]: Abstraction has 418770 states and 506797 transitions. [2023-12-21 13:32:32,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 23.714285714285715) internal successors, (332), 14 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:32,121 INFO L276 IsEmpty]: Start isEmpty. Operand 418770 states and 506797 transitions. [2023-12-21 13:32:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 13:32:32,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:32:32,136 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] [2023-12-21 13:32:32,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-21 13:32:32,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:32:32,346 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:32:32,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:32:32,346 INFO L85 PathProgramCache]: Analyzing trace with hash 29484625, now seen corresponding path program 1 times [2023-12-21 13:32:32,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:32:32,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037908224] [2023-12-21 13:32:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:32:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:32:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:32:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 13:32:32,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:32:32,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037908224] [2023-12-21 13:32:32,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037908224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:32:32,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:32:32,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:32:32,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742850799] [2023-12-21 13:32:32,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:32:32,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:32:32,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:32:32,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:32:32,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:32:32,473 INFO L87 Difference]: Start difference. First operand 418770 states and 506797 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:36,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:32:36,188 INFO L93 Difference]: Finished difference Result 955128 states and 1152170 transitions. [2023-12-21 13:32:36,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:32:36,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2023-12-21 13:32:36,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:32:37,541 INFO L225 Difference]: With dead ends: 955128 [2023-12-21 13:32:37,541 INFO L226 Difference]: Without dead ends: 550730 [2023-12-21 13:32:37,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:32:37,760 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 534 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:32:37,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1343 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:32:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550730 states. [2023-12-21 13:32:43,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550730 to 525988. [2023-12-21 13:32:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525988 states, 525987 states have (on average 1.193432537306055) internal successors, (627730), 525987 states have internal predecessors, (627730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525988 states to 525988 states and 627730 transitions. [2023-12-21 13:32:45,837 INFO L78 Accepts]: Start accepts. Automaton has 525988 states and 627730 transitions. Word has length 122 [2023-12-21 13:32:45,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:32:45,837 INFO L495 AbstractCegarLoop]: Abstraction has 525988 states and 627730 transitions. [2023-12-21 13:32:45,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:32:45,837 INFO L276 IsEmpty]: Start isEmpty. Operand 525988 states and 627730 transitions. [2023-12-21 13:32:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 13:32:45,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:32:45,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:32:45,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-21 13:32:45,851 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:32:45,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:32:45,851 INFO L85 PathProgramCache]: Analyzing trace with hash 330802563, now seen corresponding path program 1 times [2023-12-21 13:32:45,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:32:45,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55313778] [2023-12-21 13:32:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:32:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:32:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:32:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:32:46,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:32:46,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55313778] [2023-12-21 13:32:46,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55313778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:32:46,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:32:46,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:32:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636946275] [2023-12-21 13:32:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:32:46,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:32:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:32:46,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:32:46,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:32:46,153 INFO L87 Difference]: Start difference. First operand 525988 states and 627730 transitions. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 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) [2023-12-21 13:32:54,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:32:54,527 INFO L93 Difference]: Finished difference Result 1860376 states and 2215049 transitions. [2023-12-21 13:32:54,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 13:32:54,527 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 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 [2023-12-21 13:32:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:32:59,418 INFO L225 Difference]: With dead ends: 1860376 [2023-12-21 13:32:59,418 INFO L226 Difference]: Without dead ends: 1596770 [2023-12-21 13:32:59,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2023-12-21 13:32:59,764 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 3628 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 2887 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:32:59,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3628 Valid, 3148 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2887 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 13:33:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596770 states. [2023-12-21 13:33:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596770 to 831382. [2023-12-21 13:33:14,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831382 states, 831381 states have (on average 1.1907488864912716) internal successors, (989966), 831381 states have internal predecessors, (989966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:33:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831382 states to 831382 states and 989966 transitions. [2023-12-21 13:33:18,089 INFO L78 Accepts]: Start accepts. Automaton has 831382 states and 989966 transitions. Word has length 122 [2023-12-21 13:33:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:33:18,089 INFO L495 AbstractCegarLoop]: Abstraction has 831382 states and 989966 transitions. [2023-12-21 13:33:18,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 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) [2023-12-21 13:33:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 831382 states and 989966 transitions. [2023-12-21 13:33:18,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-21 13:33:18,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:33:18,791 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:33:18,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-21 13:33:18,791 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:33:18,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:33:18,792 INFO L85 PathProgramCache]: Analyzing trace with hash -744276918, now seen corresponding path program 1 times [2023-12-21 13:33:18,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:33:18,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778419032] [2023-12-21 13:33:18,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:33:18,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:33:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:33:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 13:33:18,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:33:18,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778419032] [2023-12-21 13:33:18,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778419032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:33:18,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:33:18,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:33:18,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204810521] [2023-12-21 13:33:18,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:33:18,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:33:18,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:33:18,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:33:18,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:33:18,940 INFO L87 Difference]: Start difference. First operand 831382 states and 989966 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:33:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:33:23,311 INFO L93 Difference]: Finished difference Result 1172074 states and 1398864 transitions. [2023-12-21 13:33:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:33:23,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 123 [2023-12-21 13:33:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:33:24,836 INFO L225 Difference]: With dead ends: 1172074 [2023-12-21 13:33:24,836 INFO L226 Difference]: Without dead ends: 437371 [2023-12-21 13:33:24,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:33:24,995 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 516 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:33:24,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1231 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:33:25,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437371 states. [2023-12-21 13:33:30,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437371 to 437369. [2023-12-21 13:33:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437369 states, 437368 states have (on average 1.1795650344789743) internal successors, (515904), 437368 states have internal predecessors, (515904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:33:32,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437369 states to 437369 states and 515904 transitions. [2023-12-21 13:33:32,205 INFO L78 Accepts]: Start accepts. Automaton has 437369 states and 515904 transitions. Word has length 123 [2023-12-21 13:33:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:33:32,205 INFO L495 AbstractCegarLoop]: Abstraction has 437369 states and 515904 transitions. [2023-12-21 13:33:32,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:33:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 437369 states and 515904 transitions. [2023-12-21 13:33:32,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-21 13:33:32,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:33:32,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:33:32,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-21 13:33:32,215 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:33:32,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:33:32,216 INFO L85 PathProgramCache]: Analyzing trace with hash -105084841, now seen corresponding path program 1 times [2023-12-21 13:33:32,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:33:32,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465151070] [2023-12-21 13:33:32,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:33:32,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:33:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:33:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-21 13:33:32,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:33:32,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465151070] [2023-12-21 13:33:32,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465151070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:33:32,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:33:32,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:33:32,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484038786] [2023-12-21 13:33:32,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:33:32,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:33:32,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:33:32,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:33:32,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:33:32,270 INFO L87 Difference]: Start difference. First operand 437369 states and 515904 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)