/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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:26:59,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:27:00,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:27:00,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:27:00,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:27:00,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:27:00,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:27:00,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:27:00,063 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:27:00,063 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:27:00,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:27:00,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:27:00,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:27:00,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:27:00,065 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:27:00,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:27:00,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:27:00,065 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:27:00,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:27:00,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:27:00,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:27:00,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:27:00,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:27:00,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:27:00,068 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:27:00,068 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:27:00,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:27:00,069 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:27:00,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:27:00,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:27:00,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:27:00,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:27:00,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:27:00,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:27:00,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:27:00,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:27:00,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:27:00,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:27:00,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:27:00,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:27:00,072 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:27:00,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:27:00,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:27:00,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:27:00,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:27:00,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:27:00,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:27:00,326 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:27:00,326 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:27:00,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i [2023-12-16 04:27:01,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:27:01,997 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:27:01,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i [2023-12-16 04:27:02,013 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19c4c9e68/0180c607bc1b471a908ec876e400cead/FLAG90ca83053 [2023-12-16 04:27:02,027 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19c4c9e68/0180c607bc1b471a908ec876e400cead [2023-12-16 04:27:02,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:27:02,031 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:27:02,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:27:02,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:27:02,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:27:02,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d5a7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02, skipping insertion in model container [2023-12-16 04:27:02,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,077 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:27:02,195 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i[916,929] [2023-12-16 04:27:02,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:27:02,252 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:27:02,268 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i[916,929] [2023-12-16 04:27:02,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:27:02,327 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:27:02,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02 WrapperNode [2023-12-16 04:27:02,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:27:02,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:27:02,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:27:02,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:27:02,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,424 INFO L138 Inliner]: procedures = 26, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 446 [2023-12-16 04:27:02,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:27:02,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:27:02,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:27:02,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:27:02,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,451 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,484 INFO L175 MemorySlicer]: Split 107 memory accesses to 13 slices as follows [2, 7, 13, 12, 6, 12, 9, 8, 12, 7, 5, 10, 4]. 12 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 2, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1]. [2023-12-16 04:27:02,484 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,513 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:27:02,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:27:02,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:27:02,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:27:02,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (1/1) ... [2023-12-16 04:27:02,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:27:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:02,575 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) [2023-12-16 04:27:02,604 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 [2023-12-16 04:27:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:27:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:27:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:27:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 04:27:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 04:27:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 04:27:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 04:27:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-16 04:27:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-16 04:27:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-16 04:27:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-16 04:27:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-16 04:27:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-16 04:27:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-16 04:27:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:27:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:27:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 04:27:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 04:27:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 04:27:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 04:27:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-16 04:27:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-16 04:27:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-16 04:27:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-16 04:27:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-16 04:27:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-16 04:27:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-16 04:27:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:27:02,618 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 04:27:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 04:27:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 04:27:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 04:27:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 04:27:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:27:02,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:27:02,798 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:27:02,800 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:27:03,279 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:27:03,315 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:27:03,315 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:27:03,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:27:03 BoogieIcfgContainer [2023-12-16 04:27:03,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:27:03,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:27:03,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:27:03,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:27:03,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:27:02" (1/3) ... [2023-12-16 04:27:03,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1667b850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:27:03, skipping insertion in model container [2023-12-16 04:27:03,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:02" (2/3) ... [2023-12-16 04:27:03,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1667b850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:27:03, skipping insertion in model container [2023-12-16 04:27:03,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:27:03" (3/3) ... [2023-12-16 04:27:03,325 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-89.i [2023-12-16 04:27:03,341 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:27:03,342 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:27:03,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:27:03,422 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;@5b4cd62b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:27:03,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:27:03,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 71 states have (on average 1.4507042253521127) internal successors, (103), 72 states have internal predecessors, (103), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 04:27:03,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:03,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:03,437 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:03,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:03,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2030442482, now seen corresponding path program 1 times [2023-12-16 04:27:03,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:03,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226367131] [2023-12-16 04:27:03,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:03,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:03,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:03,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226367131] [2023-12-16 04:27:03,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 04:27:03,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007752442] [2023-12-16 04:27:03,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:03,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:03,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:03,728 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) [2023-12-16 04:27:03,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:27:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:03,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 04:27:03,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-12-16 04:27:04,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:04,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007752442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:04,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:04,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:27:04,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464050120] [2023-12-16 04:27:04,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:04,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:27:04,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:04,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:27:04,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:27:04,081 INFO L87 Difference]: Start difference. First operand has 87 states, 71 states have (on average 1.4507042253521127) internal successors, (103), 72 states have internal predecessors, (103), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 04:27:04,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:04,138 INFO L93 Difference]: Finished difference Result 171 states and 269 transitions. [2023-12-16 04:27:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:27:04,142 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2023-12-16 04:27:04,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:04,149 INFO L225 Difference]: With dead ends: 171 [2023-12-16 04:27:04,149 INFO L226 Difference]: Without dead ends: 85 [2023-12-16 04:27:04,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:27:04,158 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:04,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:04,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-16 04:27:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-12-16 04:27:04,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 70 states have (on average 1.4) internal successors, (98), 70 states have internal predecessors, (98), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 04:27:04,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2023-12-16 04:27:04,221 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 104 [2023-12-16 04:27:04,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:04,222 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2023-12-16 04:27:04,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 04:27:04,222 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2023-12-16 04:27:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:04,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:04,226 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:04,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 04:27:04,427 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,SelfDestructingSolverStorable0 [2023-12-16 04:27:04,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:04,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:04,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1862132584, now seen corresponding path program 1 times [2023-12-16 04:27:04,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:04,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822613964] [2023-12-16 04:27:04,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:04,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:04,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:04,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277481069] [2023-12-16 04:27:04,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:04,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:04,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:04,481 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) [2023-12-16 04:27:04,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:27:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:04,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:27:04,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:04,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:04,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:04,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822613964] [2023-12-16 04:27:04,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:04,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277481069] [2023-12-16 04:27:04,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277481069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:04,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:04,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:27:04,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708997827] [2023-12-16 04:27:04,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:04,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:27:04,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:04,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:27:04,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:27:04,727 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:04,780 INFO L93 Difference]: Finished difference Result 181 states and 264 transitions. [2023-12-16 04:27:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:04,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:04,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:04,782 INFO L225 Difference]: With dead ends: 181 [2023-12-16 04:27:04,782 INFO L226 Difference]: Without dead ends: 97 [2023-12-16 04:27:04,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:04,784 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 21 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:04,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 351 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-16 04:27:04,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2023-12-16 04:27:04,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 72 states have internal predecessors, (100), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 04:27:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 126 transitions. [2023-12-16 04:27:04,795 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 126 transitions. Word has length 104 [2023-12-16 04:27:04,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:04,796 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 126 transitions. [2023-12-16 04:27:04,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:04,797 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 126 transitions. [2023-12-16 04:27:04,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:04,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:04,798 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:04,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:05,010 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,SelfDestructingSolverStorable1 [2023-12-16 04:27:05,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:05,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1623488086, now seen corresponding path program 1 times [2023-12-16 04:27:05,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:05,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778496817] [2023-12-16 04:27:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:05,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:05,049 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:05,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232438296] [2023-12-16 04:27:05,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:05,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:05,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:05,051 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) [2023-12-16 04:27:05,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:27:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:05,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:27:05,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:05,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:05,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778496817] [2023-12-16 04:27:05,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232438296] [2023-12-16 04:27:05,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232438296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:05,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:05,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:27:05,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057414656] [2023-12-16 04:27:05,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:05,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:27:05,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:05,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:27:05,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:27:05,314 INFO L87 Difference]: Start difference. First operand 87 states and 126 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:05,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:05,377 INFO L93 Difference]: Finished difference Result 181 states and 262 transitions. [2023-12-16 04:27:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:05,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:05,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:05,384 INFO L225 Difference]: With dead ends: 181 [2023-12-16 04:27:05,384 INFO L226 Difference]: Without dead ends: 95 [2023-12-16 04:27:05,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:05,387 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 12 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:05,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 349 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:05,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-16 04:27:05,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2023-12-16 04:27:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 74 states have internal predecessors, (102), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 04:27:05,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 128 transitions. [2023-12-16 04:27:05,422 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 128 transitions. Word has length 104 [2023-12-16 04:27:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:05,422 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 128 transitions. [2023-12-16 04:27:05,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 128 transitions. [2023-12-16 04:27:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:05,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:05,424 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:05,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:05,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:05,638 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:05,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:05,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1680746388, now seen corresponding path program 1 times [2023-12-16 04:27:05,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:05,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324010941] [2023-12-16 04:27:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:05,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:05,713 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:05,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819577803] [2023-12-16 04:27:05,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:05,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:05,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:05,730 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) [2023-12-16 04:27:05,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:27:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:06,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:27:06,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:06,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:06,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:06,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324010941] [2023-12-16 04:27:06,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:06,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819577803] [2023-12-16 04:27:06,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819577803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:06,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:06,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:27:06,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581130402] [2023-12-16 04:27:06,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:06,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:27:06,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:06,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:27:06,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:27:06,100 INFO L87 Difference]: Start difference. First operand 89 states and 128 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:06,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:06,149 INFO L93 Difference]: Finished difference Result 181 states and 260 transitions. [2023-12-16 04:27:06,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:06,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:06,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:06,168 INFO L225 Difference]: With dead ends: 181 [2023-12-16 04:27:06,168 INFO L226 Difference]: Without dead ends: 93 [2023-12-16 04:27:06,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:06,175 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 3 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:06,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 349 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:06,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-16 04:27:06,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2023-12-16 04:27:06,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.368421052631579) internal successors, (104), 76 states have internal predecessors, (104), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 04:27:06,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2023-12-16 04:27:06,190 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 104 [2023-12-16 04:27:06,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:06,191 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2023-12-16 04:27:06,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:06,191 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2023-12-16 04:27:06,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:06,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:06,200 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:06,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:06,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:06,423 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:06,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:06,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1680805970, now seen corresponding path program 1 times [2023-12-16 04:27:06,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:06,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945986675] [2023-12-16 04:27:06,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:06,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:06,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:06,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1428979525] [2023-12-16 04:27:06,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:06,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:06,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:06,492 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:06,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:27:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:06,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 04:27:06,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:06,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2023-12-16 04:27:06,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-12-16 04:27:06,851 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:06,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:06,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:06,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945986675] [2023-12-16 04:27:06,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:06,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428979525] [2023-12-16 04:27:06,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428979525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:06,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:06,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:06,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057777979] [2023-12-16 04:27:06,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:06,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:06,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:06,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:06,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:06,854 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:07,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:07,134 INFO L93 Difference]: Finished difference Result 230 states and 329 transitions. [2023-12-16 04:27:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:07,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:07,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:07,136 INFO L225 Difference]: With dead ends: 230 [2023-12-16 04:27:07,136 INFO L226 Difference]: Without dead ends: 140 [2023-12-16 04:27:07,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:07,137 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 103 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:07,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 428 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:27:07,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-16 04:27:07,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2023-12-16 04:27:07,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 86 states have (on average 1.3953488372093024) internal successors, (120), 86 states have internal predecessors, (120), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-16 04:27:07,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2023-12-16 04:27:07,144 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 104 [2023-12-16 04:27:07,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:07,145 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2023-12-16 04:27:07,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:07,145 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2023-12-16 04:27:07,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:07,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:07,146 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:07,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-16 04:27:07,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:07,347 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:07,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:07,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1552642203, now seen corresponding path program 1 times [2023-12-16 04:27:07,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:07,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991954204] [2023-12-16 04:27:07,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:07,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:07,380 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:07,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777616996] [2023-12-16 04:27:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:07,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:07,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:07,382 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:07,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:27:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:07,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-16 04:27:07,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:07,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 04:27:07,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2023-12-16 04:27:07,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2023-12-16 04:27:07,965 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-16 04:27:07,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:08,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:08,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991954204] [2023-12-16 04:27:08,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:08,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777616996] [2023-12-16 04:27:08,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777616996] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:08,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:27:08,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2023-12-16 04:27:08,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260099403] [2023-12-16 04:27:08,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:08,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:27:08,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:27:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:27:08,231 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:08,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:08,530 INFO L93 Difference]: Finished difference Result 298 states and 425 transitions. [2023-12-16 04:27:08,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:27:08,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:08,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:08,532 INFO L225 Difference]: With dead ends: 298 [2023-12-16 04:27:08,532 INFO L226 Difference]: Without dead ends: 198 [2023-12-16 04:27:08,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:27:08,534 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 227 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:08,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 930 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-16 04:27:08,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 165. [2023-12-16 04:27:08,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 144 states have (on average 1.3819444444444444) internal successors, (199), 145 states have internal predecessors, (199), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 04:27:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 235 transitions. [2023-12-16 04:27:08,545 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 235 transitions. Word has length 104 [2023-12-16 04:27:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:08,546 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 235 transitions. [2023-12-16 04:27:08,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 235 transitions. [2023-12-16 04:27:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:08,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:08,551 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:08,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:08,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:08,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:08,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:08,761 INFO L85 PathProgramCache]: Analyzing trace with hash 272778525, now seen corresponding path program 1 times [2023-12-16 04:27:08,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:08,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175400838] [2023-12-16 04:27:08,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:08,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:08,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:08,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492997317] [2023-12-16 04:27:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:08,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:08,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:08,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:08,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:27:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:08,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 04:27:08,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:09,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:09,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:09,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175400838] [2023-12-16 04:27:09,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:09,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492997317] [2023-12-16 04:27:09,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492997317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:09,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:09,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:09,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216402676] [2023-12-16 04:27:09,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:09,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:09,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:09,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:09,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:09,008 INFO L87 Difference]: Start difference. First operand 165 states and 235 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:09,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:09,094 INFO L93 Difference]: Finished difference Result 332 states and 469 transitions. [2023-12-16 04:27:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:09,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:09,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:09,097 INFO L225 Difference]: With dead ends: 332 [2023-12-16 04:27:09,097 INFO L226 Difference]: Without dead ends: 168 [2023-12-16 04:27:09,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:09,098 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 70 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:09,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 557 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:09,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-16 04:27:09,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2023-12-16 04:27:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 144 states have (on average 1.3680555555555556) internal successors, (197), 145 states have internal predecessors, (197), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 04:27:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 233 transitions. [2023-12-16 04:27:09,113 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 233 transitions. Word has length 104 [2023-12-16 04:27:09,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:09,114 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 233 transitions. [2023-12-16 04:27:09,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:09,114 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 233 transitions. [2023-12-16 04:27:09,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:09,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:09,116 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:09,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:09,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:09,324 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:09,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:09,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1975344029, now seen corresponding path program 1 times [2023-12-16 04:27:09,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:09,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493341788] [2023-12-16 04:27:09,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:09,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:09,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:09,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005953738] [2023-12-16 04:27:09,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:09,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:09,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:09,363 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:09,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 04:27:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:09,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 04:27:09,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:09,571 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:09,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:09,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:09,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493341788] [2023-12-16 04:27:09,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:09,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005953738] [2023-12-16 04:27:09,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005953738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:09,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:09,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:09,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607096136] [2023-12-16 04:27:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:09,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:09,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:09,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:09,575 INFO L87 Difference]: Start difference. First operand 166 states and 233 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:09,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:09,666 INFO L93 Difference]: Finished difference Result 413 states and 576 transitions. [2023-12-16 04:27:09,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:27:09,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:09,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:09,668 INFO L225 Difference]: With dead ends: 413 [2023-12-16 04:27:09,668 INFO L226 Difference]: Without dead ends: 248 [2023-12-16 04:27:09,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:09,670 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 150 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:09,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 522 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:09,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-16 04:27:09,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 212. [2023-12-16 04:27:09,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 188 states have internal predecessors, (253), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 04:27:09,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 295 transitions. [2023-12-16 04:27:09,684 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 295 transitions. Word has length 104 [2023-12-16 04:27:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:09,684 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 295 transitions. [2023-12-16 04:27:09,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 295 transitions. [2023-12-16 04:27:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:09,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:09,685 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:09,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:09,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-16 04:27:09,895 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:09,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash 695480351, now seen corresponding path program 1 times [2023-12-16 04:27:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768579094] [2023-12-16 04:27:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:09,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:09,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:09,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313708513] [2023-12-16 04:27:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:09,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:09,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:09,955 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:09,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 04:27:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:10,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 04:27:10,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:10,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 04:27:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-16 04:27:10,183 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:10,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:10,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768579094] [2023-12-16 04:27:10,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:10,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313708513] [2023-12-16 04:27:10,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313708513] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:10,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:27:10,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2023-12-16 04:27:10,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119438350] [2023-12-16 04:27:10,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:10,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:27:10,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:10,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:27:10,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:27:10,331 INFO L87 Difference]: Start difference. First operand 212 states and 295 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:10,521 INFO L93 Difference]: Finished difference Result 460 states and 639 transitions. [2023-12-16 04:27:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:27:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:10,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:10,525 INFO L225 Difference]: With dead ends: 460 [2023-12-16 04:27:10,525 INFO L226 Difference]: Without dead ends: 249 [2023-12-16 04:27:10,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:27:10,528 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 231 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:10,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 993 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:10,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-12-16 04:27:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 236. [2023-12-16 04:27:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 201 states have internal predecessors, (265), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 04:27:10,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 327 transitions. [2023-12-16 04:27:10,547 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 327 transitions. Word has length 104 [2023-12-16 04:27:10,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:10,547 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 327 transitions. [2023-12-16 04:27:10,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:10,548 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2023-12-16 04:27:10,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:10,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:10,550 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:10,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:10,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:10,757 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:10,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:10,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1259091255, now seen corresponding path program 1 times [2023-12-16 04:27:10,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:10,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367749784] [2023-12-16 04:27:10,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:10,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:10,827 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:10,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717319671] [2023-12-16 04:27:10,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:10,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:10,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:10,830 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:10,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 04:27:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:11,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-16 04:27:11,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:11,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 04:27:11,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 04:27:11,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-12-16 04:27:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 4 proven. 193 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-12-16 04:27:11,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:11,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:11,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367749784] [2023-12-16 04:27:11,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:11,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717319671] [2023-12-16 04:27:11,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717319671] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:11,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:27:11,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2023-12-16 04:27:11,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386610202] [2023-12-16 04:27:11,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:11,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:27:11,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:11,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:27:11,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:27:11,857 INFO L87 Difference]: Start difference. First operand 236 states and 327 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:12,411 INFO L93 Difference]: Finished difference Result 629 states and 870 transitions. [2023-12-16 04:27:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:27:12,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:12,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:12,414 INFO L225 Difference]: With dead ends: 629 [2023-12-16 04:27:12,415 INFO L226 Difference]: Without dead ends: 394 [2023-12-16 04:27:12,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2023-12-16 04:27:12,416 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 265 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:12,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 899 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:27:12,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-16 04:27:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 328. [2023-12-16 04:27:12,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 274 states have (on average 1.3248175182481752) internal successors, (363), 278 states have internal predecessors, (363), 45 states have call successors, (45), 8 states have call predecessors, (45), 8 states have return successors, (45), 41 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 04:27:12,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 453 transitions. [2023-12-16 04:27:12,453 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 453 transitions. Word has length 104 [2023-12-16 04:27:12,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:12,455 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 453 transitions. [2023-12-16 04:27:12,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 453 transitions. [2023-12-16 04:27:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:12,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:12,457 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:12,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:12,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 04:27:12,665 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:12,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:12,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1756012363, now seen corresponding path program 1 times [2023-12-16 04:27:12,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:12,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797633188] [2023-12-16 04:27:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:12,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:12,688 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:12,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961322867] [2023-12-16 04:27:12,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:12,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:12,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:12,690 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:12,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 04:27:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:12,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 04:27:12,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:12,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:12,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:12,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797633188] [2023-12-16 04:27:12,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:12,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961322867] [2023-12-16 04:27:12,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961322867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:12,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:12,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:12,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814189862] [2023-12-16 04:27:12,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:12,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:12,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:12,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:12,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:12,944 INFO L87 Difference]: Start difference. First operand 328 states and 453 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:13,035 INFO L93 Difference]: Finished difference Result 638 states and 881 transitions. [2023-12-16 04:27:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:13,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:13,038 INFO L225 Difference]: With dead ends: 638 [2023-12-16 04:27:13,038 INFO L226 Difference]: Without dead ends: 333 [2023-12-16 04:27:13,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:13,040 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 75 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:13,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 534 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-12-16 04:27:13,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 331. [2023-12-16 04:27:13,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 276 states have (on average 1.318840579710145) internal successors, (364), 280 states have internal predecessors, (364), 45 states have call successors, (45), 9 states have call predecessors, (45), 9 states have return successors, (45), 41 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 04:27:13,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 454 transitions. [2023-12-16 04:27:13,056 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 454 transitions. Word has length 104 [2023-12-16 04:27:13,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:13,056 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 454 transitions. [2023-12-16 04:27:13,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 454 transitions. [2023-12-16 04:27:13,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:13,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:13,058 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:13,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:13,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-16 04:27:13,269 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:13,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:13,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1387255022, now seen corresponding path program 1 times [2023-12-16 04:27:13,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:13,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556685089] [2023-12-16 04:27:13,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:13,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:13,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:13,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622786953] [2023-12-16 04:27:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:13,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:13,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:13,330 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:13,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-16 04:27:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:13,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 04:27:13,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:13,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 24 [2023-12-16 04:27:13,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-12-16 04:27:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:13,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:13,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:13,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556685089] [2023-12-16 04:27:13,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:13,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622786953] [2023-12-16 04:27:13,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622786953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:13,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:13,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:13,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593348476] [2023-12-16 04:27:13,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:13,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:13,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:13,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:13,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:13,603 INFO L87 Difference]: Start difference. First operand 331 states and 454 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:13,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:13,701 INFO L93 Difference]: Finished difference Result 635 states and 872 transitions. [2023-12-16 04:27:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:13,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:13,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:13,706 INFO L225 Difference]: With dead ends: 635 [2023-12-16 04:27:13,706 INFO L226 Difference]: Without dead ends: 327 [2023-12-16 04:27:13,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:13,707 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 103 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:13,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 475 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:13,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-12-16 04:27:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2023-12-16 04:27:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 270 states have (on average 1.3074074074074074) internal successors, (353), 274 states have internal predecessors, (353), 45 states have call successors, (45), 9 states have call predecessors, (45), 9 states have return successors, (45), 41 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 04:27:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 443 transitions. [2023-12-16 04:27:13,732 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 443 transitions. Word has length 104 [2023-12-16 04:27:13,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:13,732 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 443 transitions. [2023-12-16 04:27:13,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 443 transitions. [2023-12-16 04:27:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:13,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:13,733 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:13,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:13,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-16 04:27:13,940 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:13,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:13,941 INFO L85 PathProgramCache]: Analyzing trace with hash -836389429, now seen corresponding path program 1 times [2023-12-16 04:27:13,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:13,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547338615] [2023-12-16 04:27:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:13,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:13,971 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:13,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154828865] [2023-12-16 04:27:13,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:13,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:13,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:13,974 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:13,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-16 04:27:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 04:27:14,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:14,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:14,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547338615] [2023-12-16 04:27:14,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154828865] [2023-12-16 04:27:14,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154828865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:14,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:14,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:14,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241914522] [2023-12-16 04:27:14,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:14,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:14,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:14,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:14,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:14,194 INFO L87 Difference]: Start difference. First operand 325 states and 443 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:14,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:14,281 INFO L93 Difference]: Finished difference Result 633 states and 862 transitions. [2023-12-16 04:27:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:14,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:14,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:14,286 INFO L225 Difference]: With dead ends: 633 [2023-12-16 04:27:14,286 INFO L226 Difference]: Without dead ends: 331 [2023-12-16 04:27:14,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:14,288 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 111 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:14,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 483 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-16 04:27:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 241. [2023-12-16 04:27:14,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 209 states have (on average 1.3301435406698565) internal successors, (278), 211 states have internal predecessors, (278), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 04:27:14,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 328 transitions. [2023-12-16 04:27:14,301 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 328 transitions. Word has length 104 [2023-12-16 04:27:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:14,301 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 328 transitions. [2023-12-16 04:27:14,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:14,301 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 328 transitions. [2023-12-16 04:27:14,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 04:27:14,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:14,302 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:14,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:14,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-16 04:27:14,511 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:14,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:14,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2116253107, now seen corresponding path program 1 times [2023-12-16 04:27:14,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:14,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516567139] [2023-12-16 04:27:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:14,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:14,527 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:14,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378004104] [2023-12-16 04:27:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:14,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:14,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:14,529 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:14,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-16 04:27:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:14,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 04:27:14,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:14,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 04:27:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-16 04:27:14,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:14,899 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:14,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:14,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516567139] [2023-12-16 04:27:14,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:14,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378004104] [2023-12-16 04:27:14,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378004104] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:14,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:27:14,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2023-12-16 04:27:14,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661021906] [2023-12-16 04:27:14,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:14,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:27:14,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:14,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:27:14,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:27:14,903 INFO L87 Difference]: Start difference. First operand 241 states and 328 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:15,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:15,082 INFO L93 Difference]: Finished difference Result 583 states and 790 transitions. [2023-12-16 04:27:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:27:15,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-16 04:27:15,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:15,087 INFO L225 Difference]: With dead ends: 583 [2023-12-16 04:27:15,087 INFO L226 Difference]: Without dead ends: 343 [2023-12-16 04:27:15,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:27:15,088 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 231 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:15,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 985 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-16 04:27:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 239. [2023-12-16 04:27:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 207 states have (on average 1.328502415458937) internal successors, (275), 209 states have internal predecessors, (275), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 04:27:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 325 transitions. [2023-12-16 04:27:15,099 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 325 transitions. Word has length 104 [2023-12-16 04:27:15,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:15,099 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 325 transitions. [2023-12-16 04:27:15,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 325 transitions. [2023-12-16 04:27:15,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 04:27:15,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:15,101 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:15,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:15,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:15,308 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:15,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:15,309 INFO L85 PathProgramCache]: Analyzing trace with hash 850185833, now seen corresponding path program 1 times [2023-12-16 04:27:15,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:15,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477536948] [2023-12-16 04:27:15,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:15,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:15,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:15,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736793702] [2023-12-16 04:27:15,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:15,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:15,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:15,331 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:15,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-16 04:27:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:15,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 04:27:15,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:15,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:15,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:15,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477536948] [2023-12-16 04:27:15,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:15,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736793702] [2023-12-16 04:27:15,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736793702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:15,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:15,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:15,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372824641] [2023-12-16 04:27:15,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:15,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:15,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:15,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:15,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:15,561 INFO L87 Difference]: Start difference. First operand 239 states and 325 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:15,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:15,603 INFO L93 Difference]: Finished difference Result 552 states and 754 transitions. [2023-12-16 04:27:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:15,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 106 [2023-12-16 04:27:15,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:15,605 INFO L225 Difference]: With dead ends: 552 [2023-12-16 04:27:15,605 INFO L226 Difference]: Without dead ends: 314 [2023-12-16 04:27:15,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:15,606 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 95 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:15,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 436 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:15,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-16 04:27:15,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 248. [2023-12-16 04:27:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 216 states have (on average 1.3148148148148149) internal successors, (284), 218 states have internal predecessors, (284), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 04:27:15,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 334 transitions. [2023-12-16 04:27:15,615 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 334 transitions. Word has length 106 [2023-12-16 04:27:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:15,615 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 334 transitions. [2023-12-16 04:27:15,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 334 transitions. [2023-12-16 04:27:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 04:27:15,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:15,617 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:15,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:15,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-16 04:27:15,823 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:15,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1568819976, now seen corresponding path program 1 times [2023-12-16 04:27:15,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:15,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984698406] [2023-12-16 04:27:15,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:15,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:15,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:15,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134843586] [2023-12-16 04:27:15,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:15,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:15,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:15,847 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:15,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-16 04:27:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:16,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-16 04:27:16,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:16,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 04:27:16,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-16 04:27:16,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 39 [2023-12-16 04:27:16,586 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-12-16 04:27:16,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:16,715 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:16,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:16,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984698406] [2023-12-16 04:27:16,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:16,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134843586] [2023-12-16 04:27:16,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134843586] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:16,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:27:16,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-16 04:27:16,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094833888] [2023-12-16 04:27:16,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:16,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:27:16,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:16,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:27:16,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:27:16,718 INFO L87 Difference]: Start difference. First operand 248 states and 334 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:16,784 INFO L93 Difference]: Finished difference Result 257 states and 345 transitions. [2023-12-16 04:27:16,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:16,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-16 04:27:16,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:16,786 INFO L225 Difference]: With dead ends: 257 [2023-12-16 04:27:16,786 INFO L226 Difference]: Without dead ends: 255 [2023-12-16 04:27:16,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:27:16,787 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 199 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:16,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 491 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:16,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-16 04:27:16,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 254. [2023-12-16 04:27:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 222 states have (on average 1.3063063063063063) internal successors, (290), 224 states have internal predecessors, (290), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 04:27:16,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 340 transitions. [2023-12-16 04:27:16,794 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 340 transitions. Word has length 108 [2023-12-16 04:27:16,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:16,794 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 340 transitions. [2023-12-16 04:27:16,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:16,794 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 340 transitions. [2023-12-16 04:27:16,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 04:27:16,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:16,795 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:16,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:17,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-16 04:27:17,003 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:17,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1568760394, now seen corresponding path program 1 times [2023-12-16 04:27:17,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:17,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489194001] [2023-12-16 04:27:17,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:17,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:17,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:17,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992639756] [2023-12-16 04:27:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:17,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:17,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:17,020 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:17,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-16 04:27:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 04:27:17,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:17,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-16 04:27:17,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2023-12-16 04:27:17,257 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:17,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:17,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:17,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489194001] [2023-12-16 04:27:17,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:17,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992639756] [2023-12-16 04:27:17,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992639756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:17,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:17,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:17,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251172994] [2023-12-16 04:27:17,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:17,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:17,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:17,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:17,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:17,259 INFO L87 Difference]: Start difference. First operand 254 states and 340 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:17,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:17,314 INFO L93 Difference]: Finished difference Result 550 states and 734 transitions. [2023-12-16 04:27:17,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:17,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-16 04:27:17,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:17,316 INFO L225 Difference]: With dead ends: 550 [2023-12-16 04:27:17,316 INFO L226 Difference]: Without dead ends: 297 [2023-12-16 04:27:17,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:17,317 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 104 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:17,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 507 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-12-16 04:27:17,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 292. [2023-12-16 04:27:17,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 244 states have (on average 1.2663934426229508) internal successors, (309), 247 states have internal predecessors, (309), 38 states have call successors, (38), 9 states have call predecessors, (38), 9 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 04:27:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 385 transitions. [2023-12-16 04:27:17,329 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 385 transitions. Word has length 108 [2023-12-16 04:27:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:17,330 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 385 transitions. [2023-12-16 04:27:17,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 385 transitions. [2023-12-16 04:27:17,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 04:27:17,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:17,331 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:17,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:17,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-16 04:27:17,538 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:17,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:17,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1511502092, now seen corresponding path program 1 times [2023-12-16 04:27:17,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:17,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882220666] [2023-12-16 04:27:17,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:17,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:17,555 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:17,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800267923] [2023-12-16 04:27:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:17,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:17,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:17,557 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:17,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-16 04:27:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:17,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 04:27:17,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:17,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-16 04:27:17,843 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:17,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:17,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:17,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882220666] [2023-12-16 04:27:17,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:17,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800267923] [2023-12-16 04:27:17,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800267923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:17,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:17,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:17,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272266573] [2023-12-16 04:27:17,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:17,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:17,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:17,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:17,846 INFO L87 Difference]: Start difference. First operand 292 states and 385 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:17,897 INFO L93 Difference]: Finished difference Result 549 states and 724 transitions. [2023-12-16 04:27:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:17,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-16 04:27:17,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:17,899 INFO L225 Difference]: With dead ends: 549 [2023-12-16 04:27:17,899 INFO L226 Difference]: Without dead ends: 296 [2023-12-16 04:27:17,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:17,900 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 93 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:17,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 488 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:17,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-16 04:27:17,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-12-16 04:27:17,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 247 states have (on average 1.2510121457489878) internal successors, (309), 250 states have internal predecessors, (309), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 04:27:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 385 transitions. [2023-12-16 04:27:17,972 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 385 transitions. Word has length 108 [2023-12-16 04:27:17,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:17,972 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 385 transitions. [2023-12-16 04:27:17,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:17,973 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 385 transitions. [2023-12-16 04:27:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 04:27:17,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:17,974 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:17,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:18,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-16 04:27:18,196 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:18,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:18,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1974118578, now seen corresponding path program 1 times [2023-12-16 04:27:18,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:18,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56310660] [2023-12-16 04:27:18,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:18,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:18,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:18,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909509711] [2023-12-16 04:27:18,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:18,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:18,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:18,253 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:18,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-16 04:27:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 04:27:18,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:18,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:18,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:18,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56310660] [2023-12-16 04:27:18,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:18,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909509711] [2023-12-16 04:27:18,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909509711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:18,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:18,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:18,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531237394] [2023-12-16 04:27:18,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:18,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:18,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:18,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:18,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:18,467 INFO L87 Difference]: Start difference. First operand 296 states and 385 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:18,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:18,511 INFO L93 Difference]: Finished difference Result 577 states and 748 transitions. [2023-12-16 04:27:18,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:18,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-16 04:27:18,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:18,513 INFO L225 Difference]: With dead ends: 577 [2023-12-16 04:27:18,513 INFO L226 Difference]: Without dead ends: 320 [2023-12-16 04:27:18,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:18,514 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 29 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:18,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 441 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:18,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-12-16 04:27:18,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 305. [2023-12-16 04:27:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 256 states have (on average 1.2421875) internal successors, (318), 259 states have internal predecessors, (318), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 04:27:18,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 394 transitions. [2023-12-16 04:27:18,528 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 394 transitions. Word has length 108 [2023-12-16 04:27:18,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:18,529 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 394 transitions. [2023-12-16 04:27:18,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 394 transitions. [2023-12-16 04:27:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 04:27:18,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:18,530 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:18,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:18,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:18,737 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:18,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:18,738 INFO L85 PathProgramCache]: Analyzing trace with hash 253719652, now seen corresponding path program 1 times [2023-12-16 04:27:18,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:18,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956655863] [2023-12-16 04:27:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:18,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:18,754 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:18,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1684329749] [2023-12-16 04:27:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:18,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:18,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:18,756 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:18,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-16 04:27:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:18,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:27:18,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:18,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:18,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:18,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956655863] [2023-12-16 04:27:18,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:18,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684329749] [2023-12-16 04:27:18,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684329749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:18,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:18,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:27:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834643613] [2023-12-16 04:27:18,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:18,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:27:18,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:18,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:27:18,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:27:18,993 INFO L87 Difference]: Start difference. First operand 305 states and 394 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:19,027 INFO L93 Difference]: Finished difference Result 728 states and 949 transitions. [2023-12-16 04:27:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:19,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-16 04:27:19,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:19,030 INFO L225 Difference]: With dead ends: 728 [2023-12-16 04:27:19,030 INFO L226 Difference]: Without dead ends: 462 [2023-12-16 04:27:19,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:19,031 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 108 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:19,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 329 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-12-16 04:27:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 370. [2023-12-16 04:27:19,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 321 states have (on average 1.277258566978193) internal successors, (410), 324 states have internal predecessors, (410), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 04:27:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 486 transitions. [2023-12-16 04:27:19,046 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 486 transitions. Word has length 108 [2023-12-16 04:27:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:19,046 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 486 transitions. [2023-12-16 04:27:19,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 486 transitions. [2023-12-16 04:27:19,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 04:27:19,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:19,047 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:19,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:19,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:19,255 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:19,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:19,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1079963159, now seen corresponding path program 1 times [2023-12-16 04:27:19,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:19,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514065296] [2023-12-16 04:27:19,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:19,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:19,281 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:19,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001584955] [2023-12-16 04:27:19,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:19,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:19,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:19,283 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:19,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-16 04:27:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:19,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 04:27:19,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:19,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 59 [2023-12-16 04:27:19,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2023-12-16 04:27:19,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2023-12-16 04:27:19,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 53 [2023-12-16 04:27:19,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2023-12-16 04:27:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-16 04:27:19,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:19,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2023-12-16 04:27:20,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:27:20,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2023-12-16 04:27:20,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 46 [2023-12-16 04:27:20,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-16 04:27:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:20,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:20,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514065296] [2023-12-16 04:27:20,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:20,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001584955] [2023-12-16 04:27:20,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001584955] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:20,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:27:20,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 13 [2023-12-16 04:27:20,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951650872] [2023-12-16 04:27:20,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:20,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:27:20,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:20,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:27:20,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:27:20,099 INFO L87 Difference]: Start difference. First operand 370 states and 486 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:20,735 INFO L93 Difference]: Finished difference Result 1199 states and 1561 transitions. [2023-12-16 04:27:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:27:20,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 110 [2023-12-16 04:27:20,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:20,739 INFO L225 Difference]: With dead ends: 1199 [2023-12-16 04:27:20,739 INFO L226 Difference]: Without dead ends: 868 [2023-12-16 04:27:20,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2023-12-16 04:27:20,741 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 326 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:20,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1440 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:27:20,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2023-12-16 04:27:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 622. [2023-12-16 04:27:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 546 states have (on average 1.2728937728937728) internal successors, (695), 552 states have internal predecessors, (695), 59 states have call successors, (59), 16 states have call predecessors, (59), 16 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 04:27:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 813 transitions. [2023-12-16 04:27:20,769 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 813 transitions. Word has length 110 [2023-12-16 04:27:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:20,770 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 813 transitions. [2023-12-16 04:27:20,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 813 transitions. [2023-12-16 04:27:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 04:27:20,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:20,772 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:20,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:20,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:20,980 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:20,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:20,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2091080409, now seen corresponding path program 1 times [2023-12-16 04:27:20,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:20,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803602044] [2023-12-16 04:27:20,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:20,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:21,003 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:21,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419248076] [2023-12-16 04:27:21,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:21,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:21,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:21,005 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:21,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-16 04:27:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:27:21,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:21,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-16 04:27:21,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-16 04:27:21,311 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:21,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:21,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:21,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803602044] [2023-12-16 04:27:21,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:21,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419248076] [2023-12-16 04:27:21,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419248076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:21,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:21,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:21,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802371010] [2023-12-16 04:27:21,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:21,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:21,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:21,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:21,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:21,313 INFO L87 Difference]: Start difference. First operand 622 states and 813 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:21,454 INFO L93 Difference]: Finished difference Result 1373 states and 1786 transitions. [2023-12-16 04:27:21,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:27:21,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 110 [2023-12-16 04:27:21,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:21,458 INFO L225 Difference]: With dead ends: 1373 [2023-12-16 04:27:21,458 INFO L226 Difference]: Without dead ends: 790 [2023-12-16 04:27:21,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:21,459 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 148 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:21,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 784 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:21,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-12-16 04:27:21,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 604. [2023-12-16 04:27:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 528 states have (on average 1.2708333333333333) internal successors, (671), 534 states have internal predecessors, (671), 59 states have call successors, (59), 16 states have call predecessors, (59), 16 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 04:27:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 789 transitions. [2023-12-16 04:27:21,525 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 789 transitions. Word has length 110 [2023-12-16 04:27:21,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:21,525 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 789 transitions. [2023-12-16 04:27:21,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 789 transitions. [2023-12-16 04:27:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 04:27:21,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:21,528 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:21,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:21,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:21,736 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:21,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:21,736 INFO L85 PathProgramCache]: Analyzing trace with hash 306240235, now seen corresponding path program 1 times [2023-12-16 04:27:21,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:21,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849289165] [2023-12-16 04:27:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:21,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:21,771 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:21,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884838119] [2023-12-16 04:27:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:21,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:21,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:21,786 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:21,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-16 04:27:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:21,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:27:22,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:22,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-16 04:27:22,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-16 04:27:22,065 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:22,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:22,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:22,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849289165] [2023-12-16 04:27:22,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:22,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884838119] [2023-12-16 04:27:22,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884838119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:22,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:22,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:27:22,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379019727] [2023-12-16 04:27:22,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:22,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:27:22,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:22,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:27:22,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:22,068 INFO L87 Difference]: Start difference. First operand 604 states and 789 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:22,189 INFO L93 Difference]: Finished difference Result 1416 states and 1834 transitions. [2023-12-16 04:27:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:27:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 110 [2023-12-16 04:27:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:22,193 INFO L225 Difference]: With dead ends: 1416 [2023-12-16 04:27:22,193 INFO L226 Difference]: Without dead ends: 851 [2023-12-16 04:27:22,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:27:22,195 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 128 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:22,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 650 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:27:22,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2023-12-16 04:27:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 608. [2023-12-16 04:27:22,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 531 states have (on average 1.2636534839924671) internal successors, (671), 537 states have internal predecessors, (671), 59 states have call successors, (59), 17 states have call predecessors, (59), 17 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 04:27:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 789 transitions. [2023-12-16 04:27:22,232 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 789 transitions. Word has length 110 [2023-12-16 04:27:22,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:22,232 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 789 transitions. [2023-12-16 04:27:22,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 789 transitions. [2023-12-16 04:27:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 04:27:22,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:22,234 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:22,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:22,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:22,441 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:22,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:22,441 INFO L85 PathProgramCache]: Analyzing trace with hash -704877015, now seen corresponding path program 1 times [2023-12-16 04:27:22,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:22,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702353839] [2023-12-16 04:27:22,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:22,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:22,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:22,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038439272] [2023-12-16 04:27:22,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:22,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:22,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:22,461 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:22,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-16 04:27:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:22,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-16 04:27:22,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:22,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 51 [2023-12-16 04:27:22,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2023-12-16 04:27:22,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-12-16 04:27:22,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2023-12-16 04:27:22,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2023-12-16 04:27:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-16 04:27:22,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:23,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2023-12-16 04:27:23,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:27:23,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2023-12-16 04:27:23,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-16 04:27:23,363 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:23,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:23,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702353839] [2023-12-16 04:27:23,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:23,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038439272] [2023-12-16 04:27:23,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038439272] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:27:23,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:27:23,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 13 [2023-12-16 04:27:23,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064657138] [2023-12-16 04:27:23,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:23,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:27:23,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:23,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:27:23,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:27:23,365 INFO L87 Difference]: Start difference. First operand 608 states and 789 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:24,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:24,264 INFO L93 Difference]: Finished difference Result 1505 states and 1939 transitions. [2023-12-16 04:27:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 04:27:24,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 110 [2023-12-16 04:27:24,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:24,267 INFO L225 Difference]: With dead ends: 1505 [2023-12-16 04:27:24,267 INFO L226 Difference]: Without dead ends: 940 [2023-12-16 04:27:24,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2023-12-16 04:27:24,269 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 252 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:24,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 1429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:27:24,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2023-12-16 04:27:24,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 763. [2023-12-16 04:27:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 656 states have (on average 1.2454268292682926) internal successors, (817), 665 states have internal predecessors, (817), 82 states have call successors, (82), 24 states have call predecessors, (82), 24 states have return successors, (82), 73 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-16 04:27:24,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 981 transitions. [2023-12-16 04:27:24,311 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 981 transitions. Word has length 110 [2023-12-16 04:27:24,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:24,311 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 981 transitions. [2023-12-16 04:27:24,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:24,312 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 981 transitions. [2023-12-16 04:27:24,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 04:27:24,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:24,313 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:24,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:24,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:24,520 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:24,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:24,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1411856197, now seen corresponding path program 1 times [2023-12-16 04:27:24,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:24,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600375075] [2023-12-16 04:27:24,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:24,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:24,537 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:24,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765630328] [2023-12-16 04:27:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:24,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:24,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:24,539 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:24,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-16 04:27:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:24,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 04:27:24,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:24,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:24,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:24,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600375075] [2023-12-16 04:27:24,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:24,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765630328] [2023-12-16 04:27:24,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765630328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:24,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:24,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:27:24,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211774143] [2023-12-16 04:27:24,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:24,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:27:24,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:24,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:27:24,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:27:24,767 INFO L87 Difference]: Start difference. First operand 763 states and 981 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:24,862 INFO L93 Difference]: Finished difference Result 1609 states and 2045 transitions. [2023-12-16 04:27:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:27:24,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2023-12-16 04:27:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:24,866 INFO L225 Difference]: With dead ends: 1609 [2023-12-16 04:27:24,866 INFO L226 Difference]: Without dead ends: 889 [2023-12-16 04:27:24,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:27:24,869 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 38 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:24,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 554 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:24,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2023-12-16 04:27:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 772. [2023-12-16 04:27:24,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 665 states have (on average 1.2421052631578948) internal successors, (826), 674 states have internal predecessors, (826), 82 states have call successors, (82), 24 states have call predecessors, (82), 24 states have return successors, (82), 73 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-16 04:27:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 990 transitions. [2023-12-16 04:27:24,917 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 990 transitions. Word has length 111 [2023-12-16 04:27:24,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:24,917 INFO L495 AbstractCegarLoop]: Abstraction has 772 states and 990 transitions. [2023-12-16 04:27:24,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:24,919 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 990 transitions. [2023-12-16 04:27:24,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 04:27:24,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:24,920 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:24,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:25,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-16 04:27:25,127 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:25,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:25,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1430407344, now seen corresponding path program 1 times [2023-12-16 04:27:25,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:25,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171617928] [2023-12-16 04:27:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:25,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:25,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024140346] [2023-12-16 04:27:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:25,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:25,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:25,146 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:25,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-16 04:27:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:27:25,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:25,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:25,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:25,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171617928] [2023-12-16 04:27:25,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:25,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024140346] [2023-12-16 04:27:25,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024140346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:25,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:25,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:27:25,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705920199] [2023-12-16 04:27:25,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:25,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:27:25,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:25,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:27:25,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:27:25,380 INFO L87 Difference]: Start difference. First operand 772 states and 990 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:25,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:25,438 INFO L93 Difference]: Finished difference Result 1582 states and 2018 transitions. [2023-12-16 04:27:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:27:25,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2023-12-16 04:27:25,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:25,442 INFO L225 Difference]: With dead ends: 1582 [2023-12-16 04:27:25,442 INFO L226 Difference]: Without dead ends: 853 [2023-12-16 04:27:25,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:27:25,444 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 9 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:25,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 236 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:25,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2023-12-16 04:27:25,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 781. [2023-12-16 04:27:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 674 states have (on average 1.238872403560831) internal successors, (835), 683 states have internal predecessors, (835), 82 states have call successors, (82), 24 states have call predecessors, (82), 24 states have return successors, (82), 73 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-16 04:27:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 999 transitions. [2023-12-16 04:27:25,486 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 999 transitions. Word has length 113 [2023-12-16 04:27:25,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:25,487 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 999 transitions. [2023-12-16 04:27:25,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:25,487 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 999 transitions. [2023-12-16 04:27:25,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 04:27:25,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:25,488 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:25,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:25,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-16 04:27:25,696 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:25,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1584696274, now seen corresponding path program 1 times [2023-12-16 04:27:25,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:25,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753835184] [2023-12-16 04:27:25,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:25,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:25,715 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:25,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206842324] [2023-12-16 04:27:25,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:25,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:25,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:25,717 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:25,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-16 04:27:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:25,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 04:27:25,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:26,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-16 04:27:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:26,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:26,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753835184] [2023-12-16 04:27:26,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206842324] [2023-12-16 04:27:26,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206842324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:26,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:26,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:27:26,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319287673] [2023-12-16 04:27:26,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:26,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:27:26,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:26,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:27:26,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:27:26,365 INFO L87 Difference]: Start difference. First operand 781 states and 999 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:26,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:26,457 INFO L93 Difference]: Finished difference Result 1786 states and 2283 transitions. [2023-12-16 04:27:26,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 04:27:26,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2023-12-16 04:27:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:26,461 INFO L225 Difference]: With dead ends: 1786 [2023-12-16 04:27:26,462 INFO L226 Difference]: Without dead ends: 1048 [2023-12-16 04:27:26,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:26,463 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 72 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:26,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 345 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:26,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-12-16 04:27:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1028. [2023-12-16 04:27:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 889 states have (on average 1.236220472440945) internal successors, (1099), 900 states have internal predecessors, (1099), 107 states have call successors, (107), 31 states have call predecessors, (107), 31 states have return successors, (107), 96 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-16 04:27:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1313 transitions. [2023-12-16 04:27:26,518 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1313 transitions. Word has length 113 [2023-12-16 04:27:26,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:26,518 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1313 transitions. [2023-12-16 04:27:26,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1313 transitions. [2023-12-16 04:27:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 04:27:26,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:26,520 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:26,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:26,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-16 04:27:26,728 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:26,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:26,728 INFO L85 PathProgramCache]: Analyzing trace with hash -445087287, now seen corresponding path program 1 times [2023-12-16 04:27:26,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:26,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537858119] [2023-12-16 04:27:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:26,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:26,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:26,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28576870] [2023-12-16 04:27:26,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:26,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:26,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:26,752 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:26,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-16 04:27:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:26,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:27:26,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:26,997 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-16 04:27:26,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:27:26,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:26,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537858119] [2023-12-16 04:27:26,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:26,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28576870] [2023-12-16 04:27:26,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28576870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:27:26,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:27:26,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:27:26,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024167540] [2023-12-16 04:27:26,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:27:26,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:27:26,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:26,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:27:26,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:27:26,999 INFO L87 Difference]: Start difference. First operand 1028 states and 1313 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:27,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:27,057 INFO L93 Difference]: Finished difference Result 1768 states and 2261 transitions. [2023-12-16 04:27:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:27:27,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 115 [2023-12-16 04:27:27,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:27,060 INFO L225 Difference]: With dead ends: 1768 [2023-12-16 04:27:27,061 INFO L226 Difference]: Without dead ends: 1030 [2023-12-16 04:27:27,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:27:27,062 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 89 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:27,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 418 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:27:27,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-12-16 04:27:27,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1028. [2023-12-16 04:27:27,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 889 states have (on average 1.2294713160854893) internal successors, (1093), 900 states have internal predecessors, (1093), 107 states have call successors, (107), 31 states have call predecessors, (107), 31 states have return successors, (107), 96 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-16 04:27:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1307 transitions. [2023-12-16 04:27:27,137 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1307 transitions. Word has length 115 [2023-12-16 04:27:27,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:27,138 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1307 transitions. [2023-12-16 04:27:27,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-16 04:27:27,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1307 transitions. [2023-12-16 04:27:27,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 04:27:27,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:27:27,139 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:27:27,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:27,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-16 04:27:27,347 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:27:27,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:27:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1026129737, now seen corresponding path program 1 times [2023-12-16 04:27:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:27:27,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930316746] [2023-12-16 04:27:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:27,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:27:27,383 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:27:27,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20878634] [2023-12-16 04:27:27,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:27:27,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:27:27,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:27:27,389 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:27:27,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-16 04:27:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:27:27,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-16 04:27:27,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:27:27,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 04:27:28,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-12-16 04:27:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 4 proven. 172 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-16 04:27:28,136 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:27:28,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2023-12-16 04:27:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-16 04:27:28,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:27:28,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930316746] [2023-12-16 04:27:28,366 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:27:28,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20878634] [2023-12-16 04:27:28,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20878634] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:27:28,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:27:28,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2023-12-16 04:27:28,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139313720] [2023-12-16 04:27:28,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:27:28,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 04:27:28,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:27:28,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 04:27:28,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:27:28,368 INFO L87 Difference]: Start difference. First operand 1028 states and 1307 transitions. Second operand has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 7 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 7 states have call successors, (26) [2023-12-16 04:27:28,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:27:28,758 INFO L93 Difference]: Finished difference Result 1955 states and 2432 transitions. [2023-12-16 04:27:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 04:27:28,759 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 7 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 7 states have call successors, (26) Word has length 115 [2023-12-16 04:27:28,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:27:28,760 INFO L225 Difference]: With dead ends: 1955 [2023-12-16 04:27:28,760 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 04:27:28,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2023-12-16 04:27:28,780 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 311 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:27:28,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 370 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:27:28,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 04:27:28,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 04:27:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 04:27:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 04:27:28,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2023-12-16 04:27:28,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:27:28,782 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 04:27:28,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 7 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 7 states have call successors, (26) [2023-12-16 04:27:28,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 04:27:28,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 04:27:28,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:27:28,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-12-16 04:27:28,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-16 04:27:28,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 04:27:33,821 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-16 04:27:33,821 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-16 04:27:33,821 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-16 04:27:33,821 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-16 04:27:33,821 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L69-2(line 69) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse2 (<= (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256) 0)) (.cse3 (= |~#var_1_7~0.offset| 0)) (.cse4 (= ~var_1_7_Pointer~0.offset 0)) (.cse1 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (or (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) (= (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256) 0) .cse2 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse3 .cse4 (<= (+ .cse1 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))) [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L86-1(line 86) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L53-2(line 53) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L103-1(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,822 INFO L899 garLoopResultBuilder]: For program point L103-3(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-5(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-7(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-8(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-9(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-10(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-11(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-13(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-15(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse2 (<= (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256) 0)) (.cse3 (= |~#var_1_7~0.offset| 0)) (.cse4 (= ~var_1_7_Pointer~0.offset 0)) (.cse1 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (or (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) (= (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256) 0) .cse2 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse3 .cse4 (<= (+ .cse1 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))) [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-12-16 04:27:33,823 INFO L899 garLoopResultBuilder]: For program point L103-17(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,824 INFO L899 garLoopResultBuilder]: For program point L103-18(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,824 INFO L899 garLoopResultBuilder]: For program point L103-19(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,824 INFO L899 garLoopResultBuilder]: For program point L103-20(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,824 INFO L899 garLoopResultBuilder]: For program point L103-22(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,824 INFO L899 garLoopResultBuilder]: For program point L103-23(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,824 INFO L899 garLoopResultBuilder]: For program point L103-24(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,824 INFO L899 garLoopResultBuilder]: For program point L103-26(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,824 INFO L899 garLoopResultBuilder]: For program point L103-28(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-29(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-31(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-33(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-35(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-37(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-38(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-40(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-41(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-43(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-44(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,825 INFO L899 garLoopResultBuilder]: For program point L103-46(line 103) no Hoare annotation was computed. [2023-12-16 04:27:33,826 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse3 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)) (.cse1 (= |~#var_1_7~0.offset| 0)) (.cse2 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 (= ~var_1_8_Pointer~0.offset 0) (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse1 .cse2 (<= (+ .cse3 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))) (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse3) .cse1 .cse2))) [2023-12-16 04:27:33,826 INFO L899 garLoopResultBuilder]: For program point L89-1(line 89) no Hoare annotation was computed. [2023-12-16 04:27:33,826 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 60) no Hoare annotation was computed. [2023-12-16 04:27:33,827 INFO L899 garLoopResultBuilder]: For program point L56-2(lines 56 60) no Hoare annotation was computed. [2023-12-16 04:27:33,827 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse4 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)) (.cse1 (= |ULTIMATE.start_updateVariables_#t~mem49#1| (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0))) (.cse2 (= |~#var_1_7~0.offset| 0)) (.cse3 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 (= ~var_1_8_Pointer~0.offset 0) (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) .cse1 (= 9 ~var_1_8_Pointer~0.base) .cse2 .cse3 (<= (+ .cse4 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))) (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse4) .cse1 .cse2 .cse3))) [2023-12-16 04:27:33,827 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-12-16 04:27:33,827 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-12-16 04:27:33,827 INFO L899 garLoopResultBuilder]: For program point L57-2(line 57) no Hoare annotation was computed. [2023-12-16 04:27:33,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 04:27:33,827 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse1 (<= (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256) 0)) (.cse2 (= |~#var_1_7~0.offset| 0)) (.cse3 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)) .cse1 .cse2 .cse3) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) .cse1 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse2 .cse3))) [2023-12-16 04:27:33,827 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-12-16 04:27:33,828 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-12-16 04:27:33,828 INFO L899 garLoopResultBuilder]: For program point L59-2(line 59) no Hoare annotation was computed. [2023-12-16 04:27:33,828 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 109 115) the Hoare annotation is: (let ((.cse16 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) ~var_1_3_Pointer~0.offset) 256)) (.cse17 (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset)) (.cse14 (= (mod (select (select |#memory_int#3| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) 256) 0)) (.cse20 (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256))) (let ((.cse11 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)) (.cse8 (= .cse20 0)) (.cse6 (= .cse20 1)) (.cse5 (not .cse14)) (.cse13 (let ((.cse19 (mod .cse17 65536))) (<= (+ (div .cse19 .cse16) 1) .cse19))) (.cse15 (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256))) (let ((.cse12 (let ((.cse18 (= .cse15 0))) (or (and .cse18 .cse8 .cse13) (and (not .cse18) .cse6 .cse5 .cse13)))) (.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse1 (= .cse17 (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (.cse2 (= (mod (select (select |#memory_int#12| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 65536) .cse16)) (.cse3 (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse11)) (.cse4 (<= .cse15 0)) (.cse9 (= |~#var_1_7~0.offset| 0)) (.cse10 (= ~var_1_7_Pointer~0.offset 0))) (or (let ((.cse7 (= (mod (select (select |#memory_int#4| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256) 0))) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (or .cse6 .cse7) (or (not .cse7) .cse8) .cse9 .cse10)) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) (<= (mod ~last_1_var_1_14~0 65536) (mod ~last_1_var_1_15~0 65536)) .cse4 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse9 .cse10 (<= (+ .cse11 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) .cse12) (and .cse0 .cse1 .cse3 .cse4 .cse9 .cse10 .cse12) (and .cse0 .cse1 .cse2 .cse3 (or (and .cse13 .cse14) (and .cse8 .cse14)) .cse4 .cse9 .cse10))))) [2023-12-16 04:27:33,828 INFO L899 garLoopResultBuilder]: For program point L109-3(lines 109 115) no Hoare annotation was computed. [2023-12-16 04:27:33,828 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse1 (<= (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256) 0)) (.cse2 (= |~#var_1_7~0.offset| 0)) (.cse3 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)) .cse1 .cse2 .cse3) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) .cse1 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse2 .cse3))) [2023-12-16 04:27:33,828 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-12-16 04:27:33,829 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse1 (<= (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256) 0)) (.cse2 (= |~#var_1_7~0.offset| 0)) (.cse3 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) .cse1 .cse2 .cse3) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) .cse1 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse2 .cse3))) [2023-12-16 04:27:33,829 INFO L899 garLoopResultBuilder]: For program point L95-1(line 95) no Hoare annotation was computed. [2023-12-16 04:27:33,829 INFO L895 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: (let ((.cse12 (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256))) (let ((.cse8 (= .cse12 1)) (.cse7 (= (mod (select (select |#memory_int#3| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) 256) 0)) (.cse10 (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256)) (.cse9 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (let ((.cse2 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (.cse3 (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse9)) (.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse1 (let ((.cse11 (= .cse10 0))) (or (and (not .cse11) .cse8 (not .cse7)) (and .cse11 (= .cse12 0))))) (.cse4 (<= .cse10 0)) (.cse5 (= |~#var_1_7~0.offset| 0)) (.cse6 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse7 .cse5 .cse6) (and .cse0 .cse2 (not (= (mod (select (select |#memory_int#4| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256) 0)) .cse3 .cse4 .cse8 .cse5 .cse6) (and .cse0 .cse1 (= ~var_1_8_Pointer~0.offset 0) .cse4 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse5 .cse6 (<= (+ .cse9 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))))) [2023-12-16 04:27:33,829 INFO L899 garLoopResultBuilder]: For program point L79-1(line 79) no Hoare annotation was computed. [2023-12-16 04:27:33,829 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 04:27:33,829 INFO L895 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse1 (<= (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256) 0)) (.cse2 (= |~#var_1_7~0.offset| 0)) (.cse3 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) .cse1 .cse2 .cse3) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) .cse1 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse2 .cse3))) [2023-12-16 04:27:33,830 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-16 04:27:33,832 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 75) no Hoare annotation was computed. [2023-12-16 04:27:33,834 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (let ((.cse12 (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256))) (let ((.cse8 (= .cse12 1)) (.cse7 (= (mod (select (select |#memory_int#3| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) 256) 0)) (.cse10 (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256)) (.cse9 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (let ((.cse2 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (.cse3 (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse9)) (.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse1 (let ((.cse11 (= .cse10 0))) (or (and (not .cse11) .cse8 (not .cse7)) (and .cse11 (= .cse12 0))))) (.cse4 (<= .cse10 0)) (.cse5 (= |~#var_1_7~0.offset| 0)) (.cse6 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse7 .cse5 .cse6) (and .cse0 .cse2 (not (= (mod (select (select |#memory_int#4| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256) 0)) .cse3 .cse4 .cse8 .cse5 .cse6) (and .cse0 .cse1 (= ~var_1_8_Pointer~0.offset 0) .cse4 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse5 .cse6 (<= (+ .cse9 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))))) [2023-12-16 04:27:33,834 INFO L899 garLoopResultBuilder]: For program point L80-1(line 80) no Hoare annotation was computed. [2023-12-16 04:27:33,834 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-12-16 04:27:33,835 INFO L899 garLoopResultBuilder]: For program point L64-2(lines 64 74) no Hoare annotation was computed. [2023-12-16 04:27:33,835 INFO L895 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: (let ((.cse12 (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256))) (let ((.cse8 (= .cse12 1)) (.cse7 (= (mod (select (select |#memory_int#3| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) 256) 0)) (.cse10 (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256)) (.cse9 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (let ((.cse2 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (.cse3 (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse9)) (.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse1 (let ((.cse11 (= .cse10 0))) (or (and (not .cse11) .cse8 (not .cse7)) (and .cse11 (= .cse12 0))))) (.cse4 (<= .cse10 0)) (.cse5 (= |~#var_1_7~0.offset| 0)) (.cse6 (= ~var_1_7_Pointer~0.offset 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse7 .cse5 .cse6) (and .cse0 .cse2 (not (= (mod (select (select |#memory_int#4| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256) 0)) .cse3 .cse4 .cse8 .cse5 .cse6) (and .cse0 .cse1 (= ~var_1_8_Pointer~0.offset 0) .cse4 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse5 .cse6 (<= (+ .cse9 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))))) [2023-12-16 04:27:33,835 INFO L899 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2023-12-16 04:27:33,835 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 73) no Hoare annotation was computed. [2023-12-16 04:27:33,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-16 04:27:33,835 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-16 04:27:33,835 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse2 (<= (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256) 0)) (.cse3 (= |~#var_1_7~0.offset| 0)) (.cse4 (= ~var_1_7_Pointer~0.offset 0)) (.cse1 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (or (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) (= (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256) 0) .cse2 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse3 .cse4 (<= (+ .cse1 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))) [2023-12-16 04:27:33,835 INFO L899 garLoopResultBuilder]: For program point L83-1(line 83) no Hoare annotation was computed. [2023-12-16 04:27:33,835 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 76) no Hoare annotation was computed. [2023-12-16 04:27:33,835 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (let ((.cse0 (= |~#var_1_7~0.base| ~var_1_7_Pointer~0.base)) (.cse2 (<= (mod (select (select |#memory_int#5| ~var_1_7_Pointer~0.base) 0) 256) 0)) (.cse3 (= |~#var_1_7~0.offset| 0)) (.cse4 (= ~var_1_7_Pointer~0.offset 0)) (.cse1 (select (select |#memory_int#8| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (or (and .cse0 (= (select (select |#memory_int#11| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (select (select |#memory_int#6| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (= (select (select |#memory_int#10| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4) (and .cse0 (= ~var_1_8_Pointer~0.offset 0) (= (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256) 0) .cse2 (<= (+ (select (select |#memory_int#6| 9) 0) 1) 0) (= 9 ~var_1_8_Pointer~0.base) .cse3 .cse4 (<= (+ .cse1 4) (select (select |#memory_int#7| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))))) [2023-12-16 04:27:33,836 INFO L899 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2023-12-16 04:27:33,838 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 04:27:33,850 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:27:33,863 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,864 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,864 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,866 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,867 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,867 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,867 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated [2023-12-16 04:27:33,867 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,867 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,868 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,868 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,868 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,868 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated [2023-12-16 04:27:33,868 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[9][0] could not be translated [2023-12-16 04:27:33,869 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,869 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,869 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated [2023-12-16 04:27:33,869 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,869 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,869 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,869 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,870 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated [2023-12-16 04:27:33,870 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,870 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,870 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,870 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,870 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,870 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,871 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,871 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,871 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,871 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated [2023-12-16 04:27:33,871 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated [2023-12-16 04:27:33,871 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,871 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,871 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,872 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,872 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated [2023-12-16 04:27:33,872 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,872 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,872 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,872 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,872 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,873 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,873 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,873 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,873 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,873 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,873 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,873 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,873 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,874 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,874 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,874 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,874 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-16 04:27:33,874 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated [2023-12-16 04:27:33,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:27:33 BoogieIcfgContainer [2023-12-16 04:27:33,875 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:27:33,875 INFO L158 Benchmark]: Toolchain (without parser) took 31844.99ms. Allocated memory was 317.7MB in the beginning and 494.9MB in the end (delta: 177.2MB). Free memory was 262.6MB in the beginning and 180.6MB in the end (delta: 82.0MB). Peak memory consumption was 286.3MB. Max. memory is 8.0GB. [2023-12-16 04:27:33,876 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 216.0MB. Free memory is still 165.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:27:33,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.23ms. Allocated memory is still 317.7MB. Free memory was 262.6MB in the beginning and 248.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 04:27:33,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.06ms. Allocated memory is still 317.7MB. Free memory was 248.4MB in the beginning and 244.7MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 04:27:33,876 INFO L158 Benchmark]: Boogie Preprocessor took 114.69ms. Allocated memory is still 317.7MB. Free memory was 244.7MB in the beginning and 240.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:27:33,876 INFO L158 Benchmark]: RCFGBuilder took 775.07ms. Allocated memory is still 317.7MB. Free memory was 240.0MB in the beginning and 203.9MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-16 04:27:33,877 INFO L158 Benchmark]: TraceAbstraction took 30556.74ms. Allocated memory was 317.7MB in the beginning and 494.9MB in the end (delta: 177.2MB). Free memory was 203.3MB in the beginning and 180.6MB in the end (delta: 22.7MB). Peak memory consumption was 226.6MB. Max. memory is 8.0GB. [2023-12-16 04:27:33,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 216.0MB. Free memory is still 165.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 296.23ms. Allocated memory is still 317.7MB. Free memory was 262.6MB in the beginning and 248.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 96.06ms. Allocated memory is still 317.7MB. Free memory was 248.4MB in the beginning and 244.7MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 114.69ms. Allocated memory is still 317.7MB. Free memory was 244.7MB in the beginning and 240.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 775.07ms. Allocated memory is still 317.7MB. Free memory was 240.0MB in the beginning and 203.9MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 30556.74ms. Allocated memory was 317.7MB in the beginning and 494.9MB in the end (delta: 177.2MB). Free memory was 203.3MB in the beginning and 180.6MB in the end (delta: 22.7MB). Peak memory consumption was 226.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[9][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_7_Pointer~0!base][0] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.4s, OverallIterations: 29, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3603 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3603 mSDsluCounter, 16893 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12660 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2361 IncrementalHoareTripleChecker+Invalid, 2468 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 4233 mSDtfsCounter, 2361 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4016 GetRequests, 3773 SyntacticMatches, 3 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1028occurred in iteration=27, InterpolantAutomatonStates: 200, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 29 MinimizatonAttempts, 1647 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 1084 PreInvPairs, 1204 NumberOfFragments, 2240 HoareAnnotationTreeSize, 1084 FormulaSimplifications, 19732 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 15 FormulaSimplificationsInter, 41634 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 3213 NumberOfCodeBlocks, 3213 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3931 ConstructedInterpolants, 0 QuantifiedInterpolants, 14029 SizeOfPredicates, 205 NumberOfNonLiveVariables, 13497 ConjunctsInSsa, 338 ConjunctsInUnsatCore, 37 InterpolantComputations, 28 PerfectInterpolantSequences, 10899/11544 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-16 04:27:33,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...