/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-58.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:13:26,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:13:26,093 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 02:13:26,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:13:26,097 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:13:26,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:13:26,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:13:26,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:13:26,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:13:26,118 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:13:26,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:13:26,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:13:26,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:13:26,119 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:13:26,119 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:13:26,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:13:26,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:13:26,122 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:13:26,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:13:26,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:13:26,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:13:26,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:13:26,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:13:26,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:13:26,127 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:13:26,127 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:13:26,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:13:26,128 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:13:26,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:13:26,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:13:26,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:13:26,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:13:26,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:13:26,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:13:26,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:13:26,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:13:26,130 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:13:26,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:13:26,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:13:26,130 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:13:26,131 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:13:26,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:13:26,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:13:26,134 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:13:26,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:13:26,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:13:26,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:13:26,372 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:13:26,372 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:13:26,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i [2023-12-21 02:13:27,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:13:27,770 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:13:27,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-58.i [2023-12-21 02:13:27,779 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a0cb4c97/bef941a5a2dd41fab66237bb58d69056/FLAG98bed5ae0 [2023-12-21 02:13:27,791 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a0cb4c97/bef941a5a2dd41fab66237bb58d69056 [2023-12-21 02:13:27,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:13:27,794 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:13:27,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:13:27,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:13:27,799 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:13:27,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:13:27" (1/1) ... [2023-12-21 02:13:27,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110c4a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:27, skipping insertion in model container [2023-12-21 02:13:27,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:13:27" (1/1) ... [2023-12-21 02:13:27,823 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:13:27,930 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-58.i[916,929] [2023-12-21 02:13:27,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:13:27,990 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:13:28,000 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-58.i[916,929] [2023-12-21 02:13:28,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:13:28,053 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:13:28,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28 WrapperNode [2023-12-21 02:13:28,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:13:28,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:13:28,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:13:28,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:13:28,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,132 INFO L138 Inliner]: procedures = 26, calls = 162, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 467 [2023-12-21 02:13:28,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:13:28,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:13:28,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:13:28,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:13:28,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,181 INFO L175 MemorySlicer]: Split 125 memory accesses to 12 slices as follows [2, 7, 28, 16, 8, 12, 7, 11, 6, 19, 6, 3]. 22 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 3, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1]. [2023-12-21 02:13:28,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:13:28,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:13:28,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:13:28,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:13:28,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (1/1) ... [2023-12-21 02:13:28,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:13:28,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:28,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 02:13:28,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 02:13:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:13:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:13:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:13:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 02:13:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 02:13:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 02:13:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 02:13:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 02:13:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 02:13:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 02:13:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 02:13:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 02:13:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 02:13:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:13:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:13:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 02:13:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 02:13:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 02:13:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 02:13:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 02:13:28,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 02:13:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 02:13:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 02:13:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 02:13:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 02:13:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:13:28,306 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:13:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:13:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:13:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 02:13:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 02:13:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 02:13:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 02:13:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 02:13:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 02:13:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 02:13:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 02:13:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 02:13:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 02:13:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:13:28,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:13:28,463 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:13:28,464 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:13:28,858 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:13:28,925 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:13:28,925 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:13:28,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:13:28 BoogieIcfgContainer [2023-12-21 02:13:28,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:13:28,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:13:28,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:13:28,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:13:28,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:13:27" (1/3) ... [2023-12-21 02:13:28,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1800ed0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:13:28, skipping insertion in model container [2023-12-21 02:13:28,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:13:28" (2/3) ... [2023-12-21 02:13:28,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1800ed0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:13:28, skipping insertion in model container [2023-12-21 02:13:28,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:13:28" (3/3) ... [2023-12-21 02:13:28,934 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-58.i [2023-12-21 02:13:28,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:13:28,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:13:28,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:13:28,994 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;@2a1ba244, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:13:28,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:13:28,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 68 states have internal predecessors, (96), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-21 02:13:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:13:29,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:29,010 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:29,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:29,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1705673958, now seen corresponding path program 1 times [2023-12-21 02:13:29,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:29,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009788530] [2023-12-21 02:13:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:29,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:29,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009788530] [2023-12-21 02:13:29,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 02:13:29,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137363979] [2023-12-21 02:13:29,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:29,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:29,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:29,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:13:29,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 02:13:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:29,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 02:13:29,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:29,600 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-12-21 02:13:29,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:29,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137363979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:29,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:29,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:13:29,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867526179] [2023-12-21 02:13:29,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:29,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:13:29,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:13:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:13:29,644 INFO L87 Difference]: Start difference. First operand has 85 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 68 states have internal predecessors, (96), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 02:13:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:29,699 INFO L93 Difference]: Finished difference Result 163 states and 259 transitions. [2023-12-21 02:13:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:13:29,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 111 [2023-12-21 02:13:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:29,709 INFO L225 Difference]: With dead ends: 163 [2023-12-21 02:13:29,709 INFO L226 Difference]: Without dead ends: 79 [2023-12-21 02:13:29,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:13:29,717 INFO L413 NwaCegarLoop]: 109 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, 109 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 [2023-12-21 02:13:29,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:13:29,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-21 02:13:29,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-12-21 02:13:29,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 62 states have internal predecessors, (83), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-21 02:13:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 113 transitions. [2023-12-21 02:13:29,757 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 113 transitions. Word has length 111 [2023-12-21 02:13:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:29,758 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 113 transitions. [2023-12-21 02:13:29,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 02:13:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 113 transitions. [2023-12-21 02:13:29,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:13:29,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:29,762 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:29,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:29,963 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 [2023-12-21 02:13:29,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:29,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:29,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1642599684, now seen corresponding path program 1 times [2023-12-21 02:13:29,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:29,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612070382] [2023-12-21 02:13:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:29,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:30,049 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:30,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623661299] [2023-12-21 02:13:30,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:30,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:30,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:30,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:13:30,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 02:13:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:30,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:13:30,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:30,329 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:30,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:30,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:30,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612070382] [2023-12-21 02:13:30,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:30,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623661299] [2023-12-21 02:13:30,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623661299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:30,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:30,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:13:30,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029783747] [2023-12-21 02:13:30,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:30,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:13:30,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:30,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:13:30,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:13:30,335 INFO L87 Difference]: Start difference. First operand 79 states and 113 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:30,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:30,400 INFO L93 Difference]: Finished difference Result 161 states and 230 transitions. [2023-12-21 02:13:30,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:13:30,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 111 [2023-12-21 02:13:30,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:30,402 INFO L225 Difference]: With dead ends: 161 [2023-12-21 02:13:30,402 INFO L226 Difference]: Without dead ends: 83 [2023-12-21 02:13:30,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:30,404 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 3 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:30,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 315 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:13:30,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-21 02:13:30,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2023-12-21 02:13:30,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-21 02:13:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 115 transitions. [2023-12-21 02:13:30,413 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 115 transitions. Word has length 111 [2023-12-21 02:13:30,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:30,414 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 115 transitions. [2023-12-21 02:13:30,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 115 transitions. [2023-12-21 02:13:30,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:13:30,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:30,417 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:30,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:30,624 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 [2023-12-21 02:13:30,625 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:30,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1642659266, now seen corresponding path program 1 times [2023-12-21 02:13:30,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:30,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642553109] [2023-12-21 02:13:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:30,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:30,682 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:30,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538751530] [2023-12-21 02:13:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:30,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:30,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:30,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:13:30,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 02:13:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:30,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 02:13:30,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:30,971 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 [2023-12-21 02:13:31,013 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 52 treesize of output 40 [2023-12-21 02:13:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:31,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:31,144 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:31,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642553109] [2023-12-21 02:13:31,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:31,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538751530] [2023-12-21 02:13:31,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538751530] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:31,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:31,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2023-12-21 02:13:31,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828837472] [2023-12-21 02:13:31,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:31,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:13:31,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:31,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:13:31,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:13:31,148 INFO L87 Difference]: Start difference. First operand 81 states and 115 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:31,350 INFO L93 Difference]: Finished difference Result 223 states and 316 transitions. [2023-12-21 02:13:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:13:31,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 111 [2023-12-21 02:13:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:31,356 INFO L225 Difference]: With dead ends: 223 [2023-12-21 02:13:31,356 INFO L226 Difference]: Without dead ends: 143 [2023-12-21 02:13:31,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:13:31,358 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 163 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:31,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 446 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:31,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-12-21 02:13:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 95. [2023-12-21 02:13:31,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.3461538461538463) internal successors, (105), 78 states have internal predecessors, (105), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-21 02:13:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2023-12-21 02:13:31,367 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 135 transitions. Word has length 111 [2023-12-21 02:13:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:31,367 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 135 transitions. [2023-12-21 02:13:31,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2023-12-21 02:13:31,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:13:31,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:31,369 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:31,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:31,577 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 [2023-12-21 02:13:31,577 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:31,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:31,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1951243452, now seen corresponding path program 1 times [2023-12-21 02:13:31,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:31,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253742587] [2023-12-21 02:13:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:31,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:31,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186314558] [2023-12-21 02:13:31,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:31,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:31,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:31,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:13:31,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 02:13:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:31,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 02:13:31,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:31,891 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 32 treesize of output 24 [2023-12-21 02:13:31,898 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 28 treesize of output 20 [2023-12-21 02:13:31,904 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 24 treesize of output 16 [2023-12-21 02:13:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:31,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:31,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:31,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253742587] [2023-12-21 02:13:31,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:31,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186314558] [2023-12-21 02:13:31,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186314558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:31,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:31,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:13:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765564367] [2023-12-21 02:13:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:31,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:13:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:31,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:13:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:13:31,919 INFO L87 Difference]: Start difference. First operand 95 states and 135 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:32,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:32,072 INFO L93 Difference]: Finished difference Result 266 states and 374 transitions. [2023-12-21 02:13:32,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:13:32,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 111 [2023-12-21 02:13:32,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:32,075 INFO L225 Difference]: With dead ends: 266 [2023-12-21 02:13:32,075 INFO L226 Difference]: Without dead ends: 172 [2023-12-21 02:13:32,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:13:32,076 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 152 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:32,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 382 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-21 02:13:32,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 128. [2023-12-21 02:13:32,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 108 states have (on average 1.3425925925925926) internal successors, (145), 109 states have internal predecessors, (145), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-21 02:13:32,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 179 transitions. [2023-12-21 02:13:32,092 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 179 transitions. Word has length 111 [2023-12-21 02:13:32,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:32,096 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 179 transitions. [2023-12-21 02:13:32,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 179 transitions. [2023-12-21 02:13:32,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:13:32,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:32,098 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:32,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:32,309 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 [2023-12-21 02:13:32,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:32,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:32,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1943293965, now seen corresponding path program 1 times [2023-12-21 02:13:32,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:32,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635465085] [2023-12-21 02:13:32,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:32,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:32,350 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:32,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066360671] [2023-12-21 02:13:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:32,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:32,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:32,358 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) [2023-12-21 02:13:32,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 02:13:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:32,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:13:32,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:32,613 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 [2023-12-21 02:13:32,621 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:32,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:32,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635465085] [2023-12-21 02:13:32,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066360671] [2023-12-21 02:13:32,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066360671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:32,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:32,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:32,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985020300] [2023-12-21 02:13:32,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:32,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:32,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:32,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:32,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:32,623 INFO L87 Difference]: Start difference. First operand 128 states and 179 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:32,791 INFO L93 Difference]: Finished difference Result 355 states and 496 transitions. [2023-12-21 02:13:32,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:13:32,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 111 [2023-12-21 02:13:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:32,796 INFO L225 Difference]: With dead ends: 355 [2023-12-21 02:13:32,796 INFO L226 Difference]: Without dead ends: 228 [2023-12-21 02:13:32,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:32,801 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 160 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:32,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 487 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:32,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-21 02:13:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 205. [2023-12-21 02:13:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 166 states have (on average 1.3012048192771084) internal successors, (216), 168 states have internal predecessors, (216), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:13:32,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 284 transitions. [2023-12-21 02:13:32,841 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 284 transitions. Word has length 111 [2023-12-21 02:13:32,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:32,842 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 284 transitions. [2023-12-21 02:13:32,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 284 transitions. [2023-12-21 02:13:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:13:32,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:32,844 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:32,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:33,051 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 [2023-12-21 02:13:33,052 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:33,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:33,052 INFO L85 PathProgramCache]: Analyzing trace with hash 621590912, now seen corresponding path program 1 times [2023-12-21 02:13:33,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:33,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131616009] [2023-12-21 02:13:33,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:33,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:33,077 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:33,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145490673] [2023-12-21 02:13:33,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:33,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:33,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:33,079 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) [2023-12-21 02:13:33,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 02:13:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:33,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 02:13:33,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:33,310 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 32 treesize of output 24 [2023-12-21 02:13:33,314 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 28 treesize of output 20 [2023-12-21 02:13:33,318 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 24 treesize of output 16 [2023-12-21 02:13:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:33,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:33,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:33,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131616009] [2023-12-21 02:13:33,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:33,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145490673] [2023-12-21 02:13:33,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145490673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:33,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:33,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:13:33,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398970462] [2023-12-21 02:13:33,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:33,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:13:33,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:13:33,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:13:33,333 INFO L87 Difference]: Start difference. First operand 205 states and 284 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:33,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:33,515 INFO L93 Difference]: Finished difference Result 430 states and 594 transitions. [2023-12-21 02:13:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:13:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 111 [2023-12-21 02:13:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:33,518 INFO L225 Difference]: With dead ends: 430 [2023-12-21 02:13:33,518 INFO L226 Difference]: Without dead ends: 234 [2023-12-21 02:13:33,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:13:33,521 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 129 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:33,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 564 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-21 02:13:33,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 180. [2023-12-21 02:13:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 143 states have (on average 1.2797202797202798) internal successors, (183), 144 states have internal predecessors, (183), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:13:33,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 247 transitions. [2023-12-21 02:13:33,548 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 247 transitions. Word has length 111 [2023-12-21 02:13:33,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:33,549 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 247 transitions. [2023-12-21 02:13:33,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:33,551 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 247 transitions. [2023-12-21 02:13:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:13:33,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:33,553 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:33,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:33,753 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 [2023-12-21 02:13:33,754 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:33,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:33,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1322655490, now seen corresponding path program 1 times [2023-12-21 02:13:33,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:33,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905075464] [2023-12-21 02:13:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:33,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:33,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:33,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885827583] [2023-12-21 02:13:33,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:33,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:33,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:33,785 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) [2023-12-21 02:13:33,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 02:13:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:33,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 02:13:33,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:33,980 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 [2023-12-21 02:13:34,002 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 52 treesize of output 40 [2023-12-21 02:13:34,021 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:34,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:34,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905075464] [2023-12-21 02:13:34,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885827583] [2023-12-21 02:13:34,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885827583] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:34,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2023-12-21 02:13:34,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796787259] [2023-12-21 02:13:34,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:34,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:13:34,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:34,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:13:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:13:34,097 INFO L87 Difference]: Start difference. First operand 180 states and 247 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:34,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:34,214 INFO L93 Difference]: Finished difference Result 395 states and 540 transitions. [2023-12-21 02:13:34,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:13:34,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 111 [2023-12-21 02:13:34,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:34,216 INFO L225 Difference]: With dead ends: 395 [2023-12-21 02:13:34,216 INFO L226 Difference]: Without dead ends: 224 [2023-12-21 02:13:34,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:13:34,217 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 131 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:34,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 671 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:34,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-12-21 02:13:34,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 221. [2023-12-21 02:13:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 176 states have (on average 1.2727272727272727) internal successors, (224), 178 states have internal predecessors, (224), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:13:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 300 transitions. [2023-12-21 02:13:34,231 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 300 transitions. Word has length 111 [2023-12-21 02:13:34,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:34,232 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 300 transitions. [2023-12-21 02:13:34,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 300 transitions. [2023-12-21 02:13:34,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 02:13:34,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:34,233 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:34,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:34,440 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 [2023-12-21 02:13:34,440 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:34,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:34,441 INFO L85 PathProgramCache]: Analyzing trace with hash 638888476, now seen corresponding path program 1 times [2023-12-21 02:13:34,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:34,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328205088] [2023-12-21 02:13:34,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:34,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:34,478 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:34,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102166017] [2023-12-21 02:13:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:34,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:34,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:34,480 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) [2023-12-21 02:13:34,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 02:13:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:34,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:13:34,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:34,689 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 [2023-12-21 02:13:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:34,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:34,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:34,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328205088] [2023-12-21 02:13:34,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:34,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102166017] [2023-12-21 02:13:34,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102166017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:34,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:34,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:34,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944572436] [2023-12-21 02:13:34,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:34,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:34,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:34,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:34,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:34,698 INFO L87 Difference]: Start difference. First operand 221 states and 300 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:34,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:34,823 INFO L93 Difference]: Finished difference Result 435 states and 591 transitions. [2023-12-21 02:13:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:34,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 112 [2023-12-21 02:13:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:34,825 INFO L225 Difference]: With dead ends: 435 [2023-12-21 02:13:34,825 INFO L226 Difference]: Without dead ends: 223 [2023-12-21 02:13:34,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:34,826 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 130 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:34,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 395 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-21 02:13:34,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2023-12-21 02:13:34,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 176 states have (on average 1.2613636363636365) internal successors, (222), 178 states have internal predecessors, (222), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:13:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 298 transitions. [2023-12-21 02:13:34,840 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 298 transitions. Word has length 112 [2023-12-21 02:13:34,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:34,840 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 298 transitions. [2023-12-21 02:13:34,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:34,841 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 298 transitions. [2023-12-21 02:13:34,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 02:13:34,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:34,842 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:34,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:35,049 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 [2023-12-21 02:13:35,049 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:35,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash 939523175, now seen corresponding path program 1 times [2023-12-21 02:13:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:35,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667240550] [2023-12-21 02:13:35,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:35,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:35,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:35,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483369831] [2023-12-21 02:13:35,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:35,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:35,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:35,074 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) [2023-12-21 02:13:35,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 02:13:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:35,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 02:13:35,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:35,302 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 [2023-12-21 02:13:35,305 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 [2023-12-21 02:13:35,312 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:35,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:35,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:35,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667240550] [2023-12-21 02:13:35,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:35,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483369831] [2023-12-21 02:13:35,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483369831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:35,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:35,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:35,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011369328] [2023-12-21 02:13:35,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:35,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:35,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:35,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:35,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:35,316 INFO L87 Difference]: Start difference. First operand 221 states and 298 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:35,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:35,447 INFO L93 Difference]: Finished difference Result 494 states and 670 transitions. [2023-12-21 02:13:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:13:35,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 112 [2023-12-21 02:13:35,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:35,449 INFO L225 Difference]: With dead ends: 494 [2023-12-21 02:13:35,449 INFO L226 Difference]: Without dead ends: 282 [2023-12-21 02:13:35,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:35,452 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 104 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:35,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 422 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:35,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-12-21 02:13:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 233. [2023-12-21 02:13:35,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 188 states have (on average 1.2659574468085106) internal successors, (238), 190 states have internal predecessors, (238), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:13:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 314 transitions. [2023-12-21 02:13:35,466 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 314 transitions. Word has length 112 [2023-12-21 02:13:35,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:35,466 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 314 transitions. [2023-12-21 02:13:35,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:35,467 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 314 transitions. [2023-12-21 02:13:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 02:13:35,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:35,468 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:35,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:35,674 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 [2023-12-21 02:13:35,674 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:35,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:35,675 INFO L85 PathProgramCache]: Analyzing trace with hash 238458597, now seen corresponding path program 1 times [2023-12-21 02:13:35,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:35,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629634176] [2023-12-21 02:13:35,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:35,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:35,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:35,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729179699] [2023-12-21 02:13:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:35,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:35,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:35,708 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) [2023-12-21 02:13:35,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 02:13:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:35,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 02:13:35,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:35,919 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 [2023-12-21 02:13:35,934 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 [2023-12-21 02:13:35,952 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 19 treesize of output 11 [2023-12-21 02:13:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:35,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:36,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:36,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629634176] [2023-12-21 02:13:36,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:36,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729179699] [2023-12-21 02:13:36,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729179699] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:36,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:36,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2023-12-21 02:13:36,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617005365] [2023-12-21 02:13:36,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:36,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:13:36,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:36,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:13:36,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:13:36,113 INFO L87 Difference]: Start difference. First operand 233 states and 314 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:36,389 INFO L93 Difference]: Finished difference Result 484 states and 654 transitions. [2023-12-21 02:13:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:13:36,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 112 [2023-12-21 02:13:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:36,391 INFO L225 Difference]: With dead ends: 484 [2023-12-21 02:13:36,391 INFO L226 Difference]: Without dead ends: 260 [2023-12-21 02:13:36,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:13:36,392 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 156 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:36,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 718 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:13:36,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-21 02:13:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 236. [2023-12-21 02:13:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 191 states have (on average 1.2617801047120418) internal successors, (241), 193 states have internal predecessors, (241), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:13:36,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 317 transitions. [2023-12-21 02:13:36,406 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 317 transitions. Word has length 112 [2023-12-21 02:13:36,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:36,407 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 317 transitions. [2023-12-21 02:13:36,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:36,407 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 317 transitions. [2023-12-21 02:13:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 02:13:36,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:36,408 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:36,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:36,612 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 [2023-12-21 02:13:36,612 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:36,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:36,613 INFO L85 PathProgramCache]: Analyzing trace with hash -648824727, now seen corresponding path program 1 times [2023-12-21 02:13:36,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:36,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380919234] [2023-12-21 02:13:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:36,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:36,634 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:36,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284745478] [2023-12-21 02:13:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:36,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:36,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:36,636 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) [2023-12-21 02:13:36,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 02:13:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:36,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 02:13:36,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:36,868 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 19 treesize of output 15 [2023-12-21 02:13:36,885 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 [2023-12-21 02:13:36,899 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 [2023-12-21 02:13:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:36,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:37,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:37,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380919234] [2023-12-21 02:13:37,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:37,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284745478] [2023-12-21 02:13:37,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284745478] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:37,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:37,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2023-12-21 02:13:37,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883996796] [2023-12-21 02:13:37,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:37,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:13:37,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:37,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:13:37,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:13:37,065 INFO L87 Difference]: Start difference. First operand 236 states and 317 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:37,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:37,303 INFO L93 Difference]: Finished difference Result 517 states and 696 transitions. [2023-12-21 02:13:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:13:37,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 112 [2023-12-21 02:13:37,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:37,305 INFO L225 Difference]: With dead ends: 517 [2023-12-21 02:13:37,305 INFO L226 Difference]: Without dead ends: 290 [2023-12-21 02:13:37,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:13:37,306 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 188 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:37,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 855 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:37,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-12-21 02:13:37,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 260. [2023-12-21 02:13:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 215 states have (on average 1.2744186046511627) internal successors, (274), 217 states have internal predecessors, (274), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:13:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 350 transitions. [2023-12-21 02:13:37,320 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 350 transitions. Word has length 112 [2023-12-21 02:13:37,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:37,323 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 350 transitions. [2023-12-21 02:13:37,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:37,323 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 350 transitions. [2023-12-21 02:13:37,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 02:13:37,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:37,324 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:37,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:37,530 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 [2023-12-21 02:13:37,530 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:37,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:37,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1349889305, now seen corresponding path program 1 times [2023-12-21 02:13:37,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:37,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703219451] [2023-12-21 02:13:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:37,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:37,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:37,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [943438788] [2023-12-21 02:13:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:37,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:37,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:37,554 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) [2023-12-21 02:13:37,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 02:13:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:37,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:13:37,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:37,780 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 [2023-12-21 02:13:37,782 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 [2023-12-21 02:13:37,790 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:37,790 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:37,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:37,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703219451] [2023-12-21 02:13:37,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:37,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943438788] [2023-12-21 02:13:37,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943438788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:37,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:37,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:37,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334632585] [2023-12-21 02:13:37,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:37,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:37,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:37,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:37,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:37,792 INFO L87 Difference]: Start difference. First operand 260 states and 350 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:37,917 INFO L93 Difference]: Finished difference Result 519 states and 697 transitions. [2023-12-21 02:13:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 112 [2023-12-21 02:13:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:37,919 INFO L225 Difference]: With dead ends: 519 [2023-12-21 02:13:37,919 INFO L226 Difference]: Without dead ends: 260 [2023-12-21 02:13:37,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:37,920 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 74 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:37,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 432 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:37,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-21 02:13:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2023-12-21 02:13:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 212 states have (on average 1.2688679245283019) internal successors, (269), 214 states have internal predecessors, (269), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:13:37,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 345 transitions. [2023-12-21 02:13:37,946 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 345 transitions. Word has length 112 [2023-12-21 02:13:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:37,946 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 345 transitions. [2023-12-21 02:13:37,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:37,947 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 345 transitions. [2023-12-21 02:13:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 02:13:37,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:37,948 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:37,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:38,154 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 [2023-12-21 02:13:38,155 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:38,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:38,155 INFO L85 PathProgramCache]: Analyzing trace with hash -567829615, now seen corresponding path program 1 times [2023-12-21 02:13:38,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:38,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463313825] [2023-12-21 02:13:38,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:38,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:38,177 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:38,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589900630] [2023-12-21 02:13:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:38,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:38,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:38,179 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) [2023-12-21 02:13:38,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 02:13:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:38,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-21 02:13:38,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:38,411 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 [2023-12-21 02:13:38,457 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:38,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:38,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:38,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463313825] [2023-12-21 02:13:38,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:38,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589900630] [2023-12-21 02:13:38,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589900630] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:38,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:38,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2023-12-21 02:13:38,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231260978] [2023-12-21 02:13:38,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:38,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:13:38,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:38,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:13:38,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:13:38,533 INFO L87 Difference]: Start difference. First operand 257 states and 345 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:38,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:38,670 INFO L93 Difference]: Finished difference Result 690 states and 917 transitions. [2023-12-21 02:13:38,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:13:38,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 113 [2023-12-21 02:13:38,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:38,674 INFO L225 Difference]: With dead ends: 690 [2023-12-21 02:13:38,674 INFO L226 Difference]: Without dead ends: 434 [2023-12-21 02:13:38,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:13:38,675 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 103 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:38,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 534 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:38,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-12-21 02:13:38,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 290. [2023-12-21 02:13:38,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 245 states have (on average 1.2448979591836735) internal successors, (305), 247 states have internal predecessors, (305), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-21 02:13:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 381 transitions. [2023-12-21 02:13:38,692 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 381 transitions. Word has length 113 [2023-12-21 02:13:38,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:38,693 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 381 transitions. [2023-12-21 02:13:38,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 381 transitions. [2023-12-21 02:13:38,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:13:38,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:38,694 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:38,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:38,901 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 [2023-12-21 02:13:38,901 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:38,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:38,902 INFO L85 PathProgramCache]: Analyzing trace with hash -600799736, now seen corresponding path program 1 times [2023-12-21 02:13:38,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:38,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838116463] [2023-12-21 02:13:38,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:38,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:38,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:38,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197658400] [2023-12-21 02:13:38,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:38,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:38,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:38,925 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) [2023-12-21 02:13:38,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 02:13:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:40,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 02:13:40,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:40,336 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 41 treesize of output 33 [2023-12-21 02:13:40,342 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 29 [2023-12-21 02:13:40,346 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 33 treesize of output 25 [2023-12-21 02:13:40,348 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 29 treesize of output 21 [2023-12-21 02:13:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:40,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:40,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:40,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838116463] [2023-12-21 02:13:40,366 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:40,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197658400] [2023-12-21 02:13:40,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197658400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:40,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:40,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:40,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011414021] [2023-12-21 02:13:40,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:40,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:40,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:40,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:40,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:40,368 INFO L87 Difference]: Start difference. First operand 290 states and 381 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:40,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:40,605 INFO L93 Difference]: Finished difference Result 687 states and 900 transitions. [2023-12-21 02:13:40,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:40,606 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 114 [2023-12-21 02:13:40,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:40,607 INFO L225 Difference]: With dead ends: 687 [2023-12-21 02:13:40,607 INFO L226 Difference]: Without dead ends: 398 [2023-12-21 02:13:40,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:13:40,608 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 73 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:40,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 411 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:13:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-12-21 02:13:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 262. [2023-12-21 02:13:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 219 states have (on average 1.2191780821917808) internal successors, (267), 220 states have internal predecessors, (267), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:13:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 339 transitions. [2023-12-21 02:13:40,623 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 339 transitions. Word has length 114 [2023-12-21 02:13:40,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:40,623 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 339 transitions. [2023-12-21 02:13:40,624 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:40,624 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 339 transitions. [2023-12-21 02:13:40,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 02:13:40,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:40,625 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:40,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:40,833 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 [2023-12-21 02:13:40,834 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:40,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1845344712, now seen corresponding path program 1 times [2023-12-21 02:13:40,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:40,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107411518] [2023-12-21 02:13:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:40,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:40,857 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:40,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333660660] [2023-12-21 02:13:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:40,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:40,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:40,861 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) [2023-12-21 02:13:40,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 02:13:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:41,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-21 02:13:41,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:41,091 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 [2023-12-21 02:13:41,128 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 [2023-12-21 02:13:41,139 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:41,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:41,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:41,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107411518] [2023-12-21 02:13:41,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:41,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333660660] [2023-12-21 02:13:41,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333660660] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:41,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:41,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-12-21 02:13:41,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004628975] [2023-12-21 02:13:41,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:41,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:41,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:41,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:41,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:13:41,251 INFO L87 Difference]: Start difference. First operand 262 states and 339 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:41,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:41,321 INFO L93 Difference]: Finished difference Result 295 states and 377 transitions. [2023-12-21 02:13:41,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:13:41,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 115 [2023-12-21 02:13:41,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:41,323 INFO L225 Difference]: With dead ends: 295 [2023-12-21 02:13:41,323 INFO L226 Difference]: Without dead ends: 293 [2023-12-21 02:13:41,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:13:41,324 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 66 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:41,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 405 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:13:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-21 02:13:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 239. [2023-12-21 02:13:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 195 states have (on average 1.2) internal successors, (234), 196 states have internal predecessors, (234), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:13:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 306 transitions. [2023-12-21 02:13:41,338 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 306 transitions. Word has length 115 [2023-12-21 02:13:41,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:41,338 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 306 transitions. [2023-12-21 02:13:41,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:41,338 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 306 transitions. [2023-12-21 02:13:41,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 02:13:41,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:41,339 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:41,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:41,546 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 [2023-12-21 02:13:41,546 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:41,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:41,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1845285130, now seen corresponding path program 1 times [2023-12-21 02:13:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:41,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430304745] [2023-12-21 02:13:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:41,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:41,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908633767] [2023-12-21 02:13:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:41,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:41,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:41,575 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) [2023-12-21 02:13:41,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 02:13:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:41,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 02:13:41,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:41,818 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 25 treesize of output 19 [2023-12-21 02:13:41,870 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 80 treesize of output 68 [2023-12-21 02:13:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:41,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:42,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:42,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430304745] [2023-12-21 02:13:42,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:42,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908633767] [2023-12-21 02:13:42,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908633767] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:42,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:42,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2023-12-21 02:13:42,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739710712] [2023-12-21 02:13:42,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:42,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:13:42,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:42,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:13:42,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:13:42,041 INFO L87 Difference]: Start difference. First operand 239 states and 306 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:42,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:42,242 INFO L93 Difference]: Finished difference Result 599 states and 765 transitions. [2023-12-21 02:13:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:13:42,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 115 [2023-12-21 02:13:42,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:42,244 INFO L225 Difference]: With dead ends: 599 [2023-12-21 02:13:42,244 INFO L226 Difference]: Without dead ends: 377 [2023-12-21 02:13:42,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:13:42,245 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 61 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:42,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 397 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:42,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-21 02:13:42,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 351. [2023-12-21 02:13:42,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 307 states have (on average 1.231270358306189) internal successors, (378), 308 states have internal predecessors, (378), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:13:42,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 450 transitions. [2023-12-21 02:13:42,261 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 450 transitions. Word has length 115 [2023-12-21 02:13:42,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:42,261 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 450 transitions. [2023-12-21 02:13:42,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:42,261 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 450 transitions. [2023-12-21 02:13:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 02:13:42,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:42,262 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:42,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:42,470 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 [2023-12-21 02:13:42,470 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:42,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2059658580, now seen corresponding path program 1 times [2023-12-21 02:13:42,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:42,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369576757] [2023-12-21 02:13:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:42,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:42,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:42,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655929206] [2023-12-21 02:13:42,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:42,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:42,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:42,501 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) [2023-12-21 02:13:42,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 02:13:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:46,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 02:13:46,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:46,095 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 39 treesize of output 31 [2023-12-21 02:13:46,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-12-21 02:13:46,104 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 31 treesize of output 23 [2023-12-21 02:13:46,106 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 19 [2023-12-21 02:13:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:46,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:46,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:46,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369576757] [2023-12-21 02:13:46,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:46,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655929206] [2023-12-21 02:13:46,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655929206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:46,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:46,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:46,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011835496] [2023-12-21 02:13:46,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:46,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:46,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:46,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:46,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:46,122 INFO L87 Difference]: Start difference. First operand 351 states and 450 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:46,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:46,316 INFO L93 Difference]: Finished difference Result 731 states and 933 transitions. [2023-12-21 02:13:46,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:13:46,316 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-21 02:13:46,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:46,318 INFO L225 Difference]: With dead ends: 731 [2023-12-21 02:13:46,318 INFO L226 Difference]: Without dead ends: 397 [2023-12-21 02:13:46,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:13:46,319 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 40 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:46,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 369 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:13:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-21 02:13:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 351. [2023-12-21 02:13:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 307 states have (on average 1.218241042345277) internal successors, (374), 308 states have internal predecessors, (374), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:13:46,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 446 transitions. [2023-12-21 02:13:46,334 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 446 transitions. Word has length 116 [2023-12-21 02:13:46,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:46,335 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 446 transitions. [2023-12-21 02:13:46,335 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:46,335 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 446 transitions. [2023-12-21 02:13:46,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 02:13:46,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:46,336 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:46,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:46,546 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 [2023-12-21 02:13:46,547 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:46,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:46,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1244881833, now seen corresponding path program 1 times [2023-12-21 02:13:46,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:46,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568137676] [2023-12-21 02:13:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:46,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:46,586 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:46,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337426898] [2023-12-21 02:13:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:46,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:46,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:46,588 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) [2023-12-21 02:13:46,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 02:13:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:46,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:13:46,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:46,881 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 [2023-12-21 02:13:46,897 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 19 treesize of output 11 [2023-12-21 02:13:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:46,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:46,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:46,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568137676] [2023-12-21 02:13:46,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:46,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337426898] [2023-12-21 02:13:46,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337426898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:46,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:46,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:46,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75816360] [2023-12-21 02:13:46,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:46,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:46,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:46,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:46,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:46,907 INFO L87 Difference]: Start difference. First operand 351 states and 446 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:47,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:47,024 INFO L93 Difference]: Finished difference Result 711 states and 895 transitions. [2023-12-21 02:13:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:47,025 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-21 02:13:47,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:47,026 INFO L225 Difference]: With dead ends: 711 [2023-12-21 02:13:47,026 INFO L226 Difference]: Without dead ends: 377 [2023-12-21 02:13:47,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:13:47,027 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 49 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:47,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 495 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-21 02:13:47,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 345. [2023-12-21 02:13:47,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 301 states have (on average 1.2093023255813953) internal successors, (364), 302 states have internal predecessors, (364), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:13:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 436 transitions. [2023-12-21 02:13:47,044 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 436 transitions. Word has length 116 [2023-12-21 02:13:47,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:47,045 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 436 transitions. [2023-12-21 02:13:47,045 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:47,045 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 436 transitions. [2023-12-21 02:13:47,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:13:47,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:47,046 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:47,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:47,253 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 [2023-12-21 02:13:47,254 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:47,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:47,254 INFO L85 PathProgramCache]: Analyzing trace with hash -725022507, now seen corresponding path program 1 times [2023-12-21 02:13:47,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:47,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959121236] [2023-12-21 02:13:47,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:47,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:47,289 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:47,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908467467] [2023-12-21 02:13:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:47,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:47,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:47,290 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) [2023-12-21 02:13:47,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 02:13:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:47,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 02:13:47,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:47,540 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 [2023-12-21 02:13:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:47,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:47,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:47,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959121236] [2023-12-21 02:13:47,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:47,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908467467] [2023-12-21 02:13:47,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908467467] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:47,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:47,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2023-12-21 02:13:47,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181029382] [2023-12-21 02:13:47,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:47,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:13:47,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:47,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:13:47,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:13:47,666 INFO L87 Difference]: Start difference. First operand 345 states and 436 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:47,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:47,827 INFO L93 Difference]: Finished difference Result 853 states and 1067 transitions. [2023-12-21 02:13:47,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:13:47,828 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-21 02:13:47,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:47,830 INFO L225 Difference]: With dead ends: 853 [2023-12-21 02:13:47,830 INFO L226 Difference]: Without dead ends: 525 [2023-12-21 02:13:47,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:13:47,831 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 116 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:47,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 762 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-21 02:13:47,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 397. [2023-12-21 02:13:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 353 states have (on average 1.2011331444759208) internal successors, (424), 354 states have internal predecessors, (424), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:13:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 496 transitions. [2023-12-21 02:13:47,849 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 496 transitions. Word has length 117 [2023-12-21 02:13:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:47,849 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 496 transitions. [2023-12-21 02:13:47,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 496 transitions. [2023-12-21 02:13:47,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 02:13:47,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:47,851 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:47,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:48,065 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 [2023-12-21 02:13:48,066 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:48,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:48,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1203052261, now seen corresponding path program 1 times [2023-12-21 02:13:48,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:48,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612429850] [2023-12-21 02:13:48,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:48,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:48,086 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:48,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609566205] [2023-12-21 02:13:48,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:48,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:48,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:48,088 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) [2023-12-21 02:13:48,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 02:13:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:48,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 02:13:48,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:48,437 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 [2023-12-21 02:13:48,504 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 [2023-12-21 02:13:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:48,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:48,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:48,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612429850] [2023-12-21 02:13:48,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:48,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609566205] [2023-12-21 02:13:48,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609566205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:48,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:48,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:13:48,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958627151] [2023-12-21 02:13:48,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:48,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:13:48,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:48,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:13:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:48,517 INFO L87 Difference]: Start difference. First operand 397 states and 496 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:48,675 INFO L93 Difference]: Finished difference Result 845 states and 1050 transitions. [2023-12-21 02:13:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:13:48,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2023-12-21 02:13:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:48,677 INFO L225 Difference]: With dead ends: 845 [2023-12-21 02:13:48,677 INFO L226 Difference]: Without dead ends: 465 [2023-12-21 02:13:48,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:13:48,678 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 74 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:48,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 378 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2023-12-21 02:13:48,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 401. [2023-12-21 02:13:48,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 357 states have (on average 1.1876750700280112) internal successors, (424), 358 states have internal predecessors, (424), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:13:48,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 496 transitions. [2023-12-21 02:13:48,696 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 496 transitions. Word has length 122 [2023-12-21 02:13:48,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:48,696 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 496 transitions. [2023-12-21 02:13:48,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 496 transitions. [2023-12-21 02:13:48,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 02:13:48,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:48,697 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:48,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:48,905 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 [2023-12-21 02:13:48,905 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:48,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:48,906 INFO L85 PathProgramCache]: Analyzing trace with hash 315122705, now seen corresponding path program 1 times [2023-12-21 02:13:48,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:48,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652279522] [2023-12-21 02:13:48,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:48,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:48,939 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:48,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85251064] [2023-12-21 02:13:48,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:48,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:48,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:48,948 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) [2023-12-21 02:13:48,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 02:13:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:49,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 02:13:49,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:49,307 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 28 [2023-12-21 02:13:49,311 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 [2023-12-21 02:13:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:49,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:49,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652279522] [2023-12-21 02:13:49,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85251064] [2023-12-21 02:13:49,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85251064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:49,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:49,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:49,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91403797] [2023-12-21 02:13:49,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:49,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:49,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:49,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:49,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:49,319 INFO L87 Difference]: Start difference. First operand 401 states and 496 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:49,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:49,438 INFO L93 Difference]: Finished difference Result 837 states and 1030 transitions. [2023-12-21 02:13:49,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:49,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2023-12-21 02:13:49,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:49,441 INFO L225 Difference]: With dead ends: 837 [2023-12-21 02:13:49,441 INFO L226 Difference]: Without dead ends: 453 [2023-12-21 02:13:49,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:49,442 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 63 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:49,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 406 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:49,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-12-21 02:13:49,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 401. [2023-12-21 02:13:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 357 states have (on average 1.1764705882352942) internal successors, (420), 358 states have internal predecessors, (420), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-21 02:13:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 492 transitions. [2023-12-21 02:13:49,461 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 492 transitions. Word has length 122 [2023-12-21 02:13:49,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:49,461 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 492 transitions. [2023-12-21 02:13:49,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:49,461 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 492 transitions. [2023-12-21 02:13:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 02:13:49,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:49,462 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:49,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-21 02:13:49,670 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 [2023-12-21 02:13:49,670 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:49,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:49,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1016187283, now seen corresponding path program 1 times [2023-12-21 02:13:49,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:49,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617892085] [2023-12-21 02:13:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:49,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:49,689 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:49,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1912191277] [2023-12-21 02:13:49,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:49,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:49,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:49,691 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) [2023-12-21 02:13:49,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 02:13:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:49,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 02:13:49,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:49,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:49,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:49,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617892085] [2023-12-21 02:13:49,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:49,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912191277] [2023-12-21 02:13:49,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912191277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:49,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:49,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:49,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302809178] [2023-12-21 02:13:49,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:49,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:49,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:49,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:49,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:49,931 INFO L87 Difference]: Start difference. First operand 401 states and 492 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:50,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:50,017 INFO L93 Difference]: Finished difference Result 867 states and 1062 transitions. [2023-12-21 02:13:50,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:13:50,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2023-12-21 02:13:50,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:50,020 INFO L225 Difference]: With dead ends: 867 [2023-12-21 02:13:50,020 INFO L226 Difference]: Without dead ends: 483 [2023-12-21 02:13:50,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:13:50,022 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 87 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:50,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 412 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:50,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-12-21 02:13:50,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 481. [2023-12-21 02:13:50,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 409 states have (on average 1.1491442542787287) internal successors, (470), 412 states have internal predecessors, (470), 58 states have call successors, (58), 13 states have call predecessors, (58), 13 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-21 02:13:50,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 586 transitions. [2023-12-21 02:13:50,064 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 586 transitions. Word has length 122 [2023-12-21 02:13:50,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:50,064 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 586 transitions. [2023-12-21 02:13:50,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 586 transitions. [2023-12-21 02:13:50,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 02:13:50,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:50,066 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:50,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:50,272 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 [2023-12-21 02:13:50,272 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:50,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:50,273 INFO L85 PathProgramCache]: Analyzing trace with hash 286206815, now seen corresponding path program 1 times [2023-12-21 02:13:50,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:50,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932448256] [2023-12-21 02:13:50,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:50,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:50,291 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:50,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646400881] [2023-12-21 02:13:50,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:50,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:50,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:50,294 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) [2023-12-21 02:13:50,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-21 02:13:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:51,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-21 02:13:51,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:51,825 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-12-21 02:13:51,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 108 [2023-12-21 02:13:51,861 INFO L349 Elim1Store]: treesize reduction 60, result has 13.0 percent of original size [2023-12-21 02:13:51,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 125 [2023-12-21 02:13:51,893 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 30 treesize of output 19 [2023-12-21 02:13:52,033 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 89 treesize of output 69 [2023-12-21 02:13:52,036 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 73 treesize of output 61 [2023-12-21 02:13:52,091 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 45 [2023-12-21 02:13:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:13:52,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:13:52,595 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 19 [2023-12-21 02:13:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:52,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:52,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932448256] [2023-12-21 02:13:52,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:52,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646400881] [2023-12-21 02:13:52,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646400881] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:13:52,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:13:52,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 21 [2023-12-21 02:13:52,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142993480] [2023-12-21 02:13:52,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:52,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:13:52,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:52,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:13:52,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-12-21 02:13:52,838 INFO L87 Difference]: Start difference. First operand 481 states and 586 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:54,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:54,296 INFO L93 Difference]: Finished difference Result 1125 states and 1353 transitions. [2023-12-21 02:13:54,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 02:13:54,297 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2023-12-21 02:13:54,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:54,300 INFO L225 Difference]: With dead ends: 1125 [2023-12-21 02:13:54,300 INFO L226 Difference]: Without dead ends: 661 [2023-12-21 02:13:54,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=151, Invalid=841, Unknown=0, NotChecked=0, Total=992 [2023-12-21 02:13:54,302 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 151 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:54,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1314 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:13:54,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-21 02:13:54,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 581. [2023-12-21 02:13:54,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 509 states have (on average 1.1355599214145382) internal successors, (578), 512 states have internal predecessors, (578), 58 states have call successors, (58), 13 states have call predecessors, (58), 13 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-21 02:13:54,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 694 transitions. [2023-12-21 02:13:54,337 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 694 transitions. Word has length 127 [2023-12-21 02:13:54,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:54,338 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 694 transitions. [2023-12-21 02:13:54,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:54,338 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 694 transitions. [2023-12-21 02:13:54,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 02:13:54,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:54,339 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:54,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-21 02:13:54,548 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 [2023-12-21 02:13:54,548 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:54,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:54,549 INFO L85 PathProgramCache]: Analyzing trace with hash 544372253, now seen corresponding path program 1 times [2023-12-21 02:13:54,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:54,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635327527] [2023-12-21 02:13:54,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:54,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:54,572 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:54,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1150645075] [2023-12-21 02:13:54,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:54,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:54,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:54,574 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) [2023-12-21 02:13:54,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-21 02:13:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:54,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:13:54,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:54,845 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 [2023-12-21 02:13:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:54,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:54,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635327527] [2023-12-21 02:13:54,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150645075] [2023-12-21 02:13:54,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150645075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:54,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:54,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:54,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623618326] [2023-12-21 02:13:54,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:54,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:54,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:54,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:54,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:54,860 INFO L87 Difference]: Start difference. First operand 581 states and 694 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:55,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:55,027 INFO L93 Difference]: Finished difference Result 1147 states and 1367 transitions. [2023-12-21 02:13:55,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:55,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2023-12-21 02:13:55,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:55,030 INFO L225 Difference]: With dead ends: 1147 [2023-12-21 02:13:55,030 INFO L226 Difference]: Without dead ends: 583 [2023-12-21 02:13:55,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:55,032 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 165 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:55,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 505 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-21 02:13:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2023-12-21 02:13:55,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 509 states have (on average 1.1277013752455796) internal successors, (574), 512 states have internal predecessors, (574), 58 states have call successors, (58), 13 states have call predecessors, (58), 13 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-21 02:13:55,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 690 transitions. [2023-12-21 02:13:55,065 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 690 transitions. Word has length 127 [2023-12-21 02:13:55,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:55,066 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 690 transitions. [2023-12-21 02:13:55,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 690 transitions. [2023-12-21 02:13:55,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 02:13:55,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:55,072 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:55,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:55,281 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 [2023-12-21 02:13:55,281 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:55,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:55,282 INFO L85 PathProgramCache]: Analyzing trace with hash 348246429, now seen corresponding path program 1 times [2023-12-21 02:13:55,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:55,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814739473] [2023-12-21 02:13:55,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:55,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:55,301 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:55,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527717] [2023-12-21 02:13:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:55,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:55,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:55,302 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) [2023-12-21 02:13:55,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-21 02:13:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:55,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:13:55,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:55,570 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 [2023-12-21 02:13:55,574 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 [2023-12-21 02:13:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:55,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:55,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:55,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814739473] [2023-12-21 02:13:55,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:55,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527717] [2023-12-21 02:13:55,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:55,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:55,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:55,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800920978] [2023-12-21 02:13:55,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:55,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:55,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:55,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:55,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:55,583 INFO L87 Difference]: Start difference. First operand 581 states and 690 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:55,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:55,726 INFO L93 Difference]: Finished difference Result 1297 states and 1528 transitions. [2023-12-21 02:13:55,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:13:55,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2023-12-21 02:13:55,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:55,730 INFO L225 Difference]: With dead ends: 1297 [2023-12-21 02:13:55,730 INFO L226 Difference]: Without dead ends: 733 [2023-12-21 02:13:55,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:13:55,732 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 54 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:55,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 412 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:55,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-12-21 02:13:55,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 597. [2023-12-21 02:13:55,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 525 states have (on average 1.1238095238095238) internal successors, (590), 528 states have internal predecessors, (590), 58 states have call successors, (58), 13 states have call predecessors, (58), 13 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-21 02:13:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 706 transitions. [2023-12-21 02:13:55,760 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 706 transitions. Word has length 127 [2023-12-21 02:13:55,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:55,760 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 706 transitions. [2023-12-21 02:13:55,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:55,761 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 706 transitions. [2023-12-21 02:13:55,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 02:13:55,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:55,762 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:55,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:55,969 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 [2023-12-21 02:13:55,970 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:55,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:55,970 INFO L85 PathProgramCache]: Analyzing trace with hash -161226661, now seen corresponding path program 1 times [2023-12-21 02:13:55,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:55,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788245709] [2023-12-21 02:13:55,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:55,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:55,994 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:55,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680793235] [2023-12-21 02:13:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:55,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:55,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:55,996 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) [2023-12-21 02:13:56,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-21 02:13:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:56,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 02:13:56,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:56,222 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 7 treesize of output 3 [2023-12-21 02:13:56,238 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 [2023-12-21 02:13:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:56,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:56,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:56,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788245709] [2023-12-21 02:13:56,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:56,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680793235] [2023-12-21 02:13:56,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680793235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:56,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:56,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:56,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438177730] [2023-12-21 02:13:56,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:56,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:56,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:56,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:56,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:56,247 INFO L87 Difference]: Start difference. First operand 597 states and 706 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:56,414 INFO L93 Difference]: Finished difference Result 1359 states and 1603 transitions. [2023-12-21 02:13:56,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:56,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2023-12-21 02:13:56,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:56,417 INFO L225 Difference]: With dead ends: 1359 [2023-12-21 02:13:56,417 INFO L226 Difference]: Without dead ends: 739 [2023-12-21 02:13:56,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:56,419 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 134 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:56,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 438 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2023-12-21 02:13:56,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 737. [2023-12-21 02:13:56,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 633 states have (on average 1.1090047393364928) internal successors, (702), 637 states have internal predecessors, (702), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-21 02:13:56,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 870 transitions. [2023-12-21 02:13:56,463 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 870 transitions. Word has length 127 [2023-12-21 02:13:56,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:56,464 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 870 transitions. [2023-12-21 02:13:56,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 870 transitions. [2023-12-21 02:13:56,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:13:56,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:56,465 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:56,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:56,672 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 [2023-12-21 02:13:56,673 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:56,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:56,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1522103296, now seen corresponding path program 1 times [2023-12-21 02:13:56,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:56,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044050817] [2023-12-21 02:13:56,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:56,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:56,699 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:56,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529613904] [2023-12-21 02:13:56,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:56,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:56,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:56,701 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) [2023-12-21 02:13:56,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-21 02:13:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:56,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:13:56,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:56,966 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 [2023-12-21 02:13:56,968 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 [2023-12-21 02:13:56,975 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:56,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:56,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:56,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044050817] [2023-12-21 02:13:56,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:56,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529613904] [2023-12-21 02:13:56,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529613904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:56,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:56,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:56,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882867321] [2023-12-21 02:13:56,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:56,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:56,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:56,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:56,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:56,977 INFO L87 Difference]: Start difference. First operand 737 states and 870 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:57,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:57,122 INFO L93 Difference]: Finished difference Result 1495 states and 1758 transitions. [2023-12-21 02:13:57,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:13:57,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:13:57,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:57,125 INFO L225 Difference]: With dead ends: 1495 [2023-12-21 02:13:57,125 INFO L226 Difference]: Without dead ends: 775 [2023-12-21 02:13:57,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:57,127 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 55 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:57,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 410 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:57,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-12-21 02:13:57,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 740. [2023-12-21 02:13:57,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 636 states have (on average 1.1022012578616351) internal successors, (701), 640 states have internal predecessors, (701), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-21 02:13:57,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 869 transitions. [2023-12-21 02:13:57,164 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 869 transitions. Word has length 128 [2023-12-21 02:13:57,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:57,165 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 869 transitions. [2023-12-21 02:13:57,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 869 transitions. [2023-12-21 02:13:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:13:57,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:57,166 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:57,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:57,373 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 [2023-12-21 02:13:57,374 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:57,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1012630206, now seen corresponding path program 1 times [2023-12-21 02:13:57,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:57,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812909050] [2023-12-21 02:13:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:57,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:57,393 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:57,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821531797] [2023-12-21 02:13:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:57,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:57,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:57,395 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) [2023-12-21 02:13:57,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-21 02:13:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:57,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:13:57,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:57,653 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 [2023-12-21 02:13:57,656 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 19 treesize of output 11 [2023-12-21 02:13:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:57,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:57,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:57,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812909050] [2023-12-21 02:13:57,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:57,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821531797] [2023-12-21 02:13:57,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821531797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:57,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:57,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:57,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930623438] [2023-12-21 02:13:57,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:57,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:57,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:57,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:57,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:57,667 INFO L87 Difference]: Start difference. First operand 740 states and 869 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:57,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:57,810 INFO L93 Difference]: Finished difference Result 1427 states and 1676 transitions. [2023-12-21 02:13:57,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:57,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:13:57,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:57,813 INFO L225 Difference]: With dead ends: 1427 [2023-12-21 02:13:57,813 INFO L226 Difference]: Without dead ends: 704 [2023-12-21 02:13:57,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:57,815 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 45 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:57,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 405 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:57,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2023-12-21 02:13:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 696. [2023-12-21 02:13:57,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 592 states have (on average 1.0962837837837838) internal successors, (649), 596 states have internal predecessors, (649), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-21 02:13:57,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 817 transitions. [2023-12-21 02:13:57,880 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 817 transitions. Word has length 128 [2023-12-21 02:13:57,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:57,881 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 817 transitions. [2023-12-21 02:13:57,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 817 transitions. [2023-12-21 02:13:57,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:13:57,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:57,882 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:57,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:58,082 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 [2023-12-21 02:13:58,083 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:58,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:58,083 INFO L85 PathProgramCache]: Analyzing trace with hash 816504382, now seen corresponding path program 1 times [2023-12-21 02:13:58,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:58,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31152274] [2023-12-21 02:13:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:58,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:58,107 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:58,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617448108] [2023-12-21 02:13:58,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:58,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:58,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:58,109 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) [2023-12-21 02:13:58,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-21 02:13:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:58,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:13:58,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:58,377 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 [2023-12-21 02:13:58,380 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 19 treesize of output 11 [2023-12-21 02:13:58,387 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:58,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:58,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:58,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31152274] [2023-12-21 02:13:58,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:58,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617448108] [2023-12-21 02:13:58,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617448108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:58,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:58,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:58,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479564385] [2023-12-21 02:13:58,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:58,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:58,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:58,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:58,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:58,388 INFO L87 Difference]: Start difference. First operand 696 states and 817 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:58,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:58,526 INFO L93 Difference]: Finished difference Result 1440 states and 1679 transitions. [2023-12-21 02:13:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:13:58,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:13:58,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:58,529 INFO L225 Difference]: With dead ends: 1440 [2023-12-21 02:13:58,529 INFO L226 Difference]: Without dead ends: 761 [2023-12-21 02:13:58,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:58,531 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 47 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:58,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 423 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:58,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-21 02:13:58,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 696. [2023-12-21 02:13:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 592 states have (on average 1.0929054054054055) internal successors, (647), 596 states have internal predecessors, (647), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-21 02:13:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 815 transitions. [2023-12-21 02:13:58,568 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 815 transitions. Word has length 128 [2023-12-21 02:13:58,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:58,568 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 815 transitions. [2023-12-21 02:13:58,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 815 transitions. [2023-12-21 02:13:58,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:13:58,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:58,569 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:58,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:58,776 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 [2023-12-21 02:13:58,777 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:58,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash -194612868, now seen corresponding path program 1 times [2023-12-21 02:13:58,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:58,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772925396] [2023-12-21 02:13:58,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:58,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:58,796 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:58,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125945664] [2023-12-21 02:13:58,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:58,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:58,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:58,798 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:13:58,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-12-21 02:13:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:13:59,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:13:59,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:13:59,102 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 [2023-12-21 02:13:59,103 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 19 treesize of output 11 [2023-12-21 02:13:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:13:59,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:13:59,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:13:59,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772925396] [2023-12-21 02:13:59,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:13:59,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125945664] [2023-12-21 02:13:59,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125945664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:13:59,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:13:59,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:13:59,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642243990] [2023-12-21 02:13:59,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:13:59,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:13:59,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:13:59,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:13:59,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:13:59,113 INFO L87 Difference]: Start difference. First operand 696 states and 815 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:59,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:13:59,235 INFO L93 Difference]: Finished difference Result 1383 states and 1616 transitions. [2023-12-21 02:13:59,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:13:59,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:13:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:13:59,238 INFO L225 Difference]: With dead ends: 1383 [2023-12-21 02:13:59,238 INFO L226 Difference]: Without dead ends: 704 [2023-12-21 02:13:59,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:13:59,240 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 41 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:59,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 395 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:13:59,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2023-12-21 02:13:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 696. [2023-12-21 02:13:59,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 592 states have (on average 1.089527027027027) internal successors, (645), 596 states have internal predecessors, (645), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-21 02:13:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 813 transitions. [2023-12-21 02:13:59,276 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 813 transitions. Word has length 128 [2023-12-21 02:13:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:13:59,276 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 813 transitions. [2023-12-21 02:13:59,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:13:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 813 transitions. [2023-12-21 02:13:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:13:59,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:13:59,277 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:13:59,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:59,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:59,485 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:13:59,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:13:59,485 INFO L85 PathProgramCache]: Analyzing trace with hash 63552570, now seen corresponding path program 1 times [2023-12-21 02:13:59,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:13:59,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012548613] [2023-12-21 02:13:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:59,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:13:59,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:13:59,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [927845659] [2023-12-21 02:13:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:13:59,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:13:59,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:13:59,509 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:13:59,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-12-21 02:14:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:14:00,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-21 02:14:00,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:14:00,935 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 [2023-12-21 02:14:01,537 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 [2023-12-21 02:14:01,790 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 [2023-12-21 02:14:01,794 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 [2023-12-21 02:14:02,016 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 43 [2023-12-21 02:14:02,020 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 34 treesize of output 22 [2023-12-21 02:14:02,026 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 [2023-12-21 02:14:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 40 proven. 215 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-12-21 02:14:02,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:14:02,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2023-12-21 02:14:06,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:14:06,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012548613] [2023-12-21 02:14:06,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:14:06,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927845659] [2023-12-21 02:14:06,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927845659] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:14:06,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:14:06,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-12-21 02:14:06,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913593062] [2023-12-21 02:14:06,578 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-21 02:14:06,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 02:14:06,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:14:06,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 02:14:06,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=649, Unknown=1, NotChecked=0, Total=756 [2023-12-21 02:14:06,580 INFO L87 Difference]: Start difference. First operand 696 states and 813 transitions. Second operand has 21 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 17 states have internal predecessors, (68), 5 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-21 02:14:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:14:08,303 INFO L93 Difference]: Finished difference Result 1532 states and 1755 transitions. [2023-12-21 02:14:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 02:14:08,304 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 17 states have internal predecessors, (68), 5 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) Word has length 128 [2023-12-21 02:14:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:14:08,308 INFO L225 Difference]: With dead ends: 1532 [2023-12-21 02:14:08,308 INFO L226 Difference]: Without dead ends: 853 [2023-12-21 02:14:08,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=453, Invalid=2198, Unknown=1, NotChecked=0, Total=2652 [2023-12-21 02:14:08,310 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 520 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:14:08,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 751 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 02:14:08,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2023-12-21 02:14:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 729. [2023-12-21 02:14:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 615 states have (on average 1.0845528455284552) internal successors, (667), 619 states have internal predecessors, (667), 84 states have call successors, (84), 29 states have call predecessors, (84), 29 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-21 02:14:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 835 transitions. [2023-12-21 02:14:08,367 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 835 transitions. Word has length 128 [2023-12-21 02:14:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:14:08,367 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 835 transitions. [2023-12-21 02:14:08,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 17 states have internal predecessors, (68), 5 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-21 02:14:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 835 transitions. [2023-12-21 02:14:08,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:14:08,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:14:08,369 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:14:08,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-12-21 02:14:08,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:14:08,578 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:14:08,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:14:08,579 INFO L85 PathProgramCache]: Analyzing trace with hash 413867838, now seen corresponding path program 1 times [2023-12-21 02:14:08,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:14:08,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330629062] [2023-12-21 02:14:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:14:08,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:14:08,600 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:14:08,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022606636] [2023-12-21 02:14:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:14:08,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:14:08,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:14:08,602 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:14:08,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-12-21 02:14:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:14:11,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-21 02:14:11,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:14:11,433 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 [2023-12-21 02:14:12,136 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 [2023-12-21 02:14:12,429 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 [2023-12-21 02:14:12,440 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 [2023-12-21 02:14:12,504 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 42 treesize of output 30 [2023-12-21 02:14:12,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2023-12-21 02:14:12,540 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 48 proven. 141 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-21 02:14:12,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:14:12,932 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 64 treesize of output 60 [2023-12-21 02:14:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 78 proven. 39 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2023-12-21 02:14:13,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:14:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330629062] [2023-12-21 02:14:13,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:14:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022606636] [2023-12-21 02:14:13,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022606636] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 02:14:13,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:14:13,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2023-12-21 02:14:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554547055] [2023-12-21 02:14:13,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:14:13,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 02:14:13,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:14:13,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 02:14:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 02:14:13,308 INFO L87 Difference]: Start difference. First operand 729 states and 835 transitions. Second operand has 34 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 30 states have internal predecessors, (106), 10 states have call successors, (30), 5 states have call predecessors, (30), 9 states have return successors, (30), 8 states have call predecessors, (30), 10 states have call successors, (30) [2023-12-21 02:14:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:14:16,165 INFO L93 Difference]: Finished difference Result 1866 states and 2119 transitions. [2023-12-21 02:14:16,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-21 02:14:16,166 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 30 states have internal predecessors, (106), 10 states have call successors, (30), 5 states have call predecessors, (30), 9 states have return successors, (30), 8 states have call predecessors, (30), 10 states have call successors, (30) Word has length 128 [2023-12-21 02:14:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:14:16,170 INFO L225 Difference]: With dead ends: 1866 [2023-12-21 02:14:16,170 INFO L226 Difference]: Without dead ends: 1158 [2023-12-21 02:14:16,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1442 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1420, Invalid=4900, Unknown=0, NotChecked=0, Total=6320 [2023-12-21 02:14:16,174 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 1139 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:14:16,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 878 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 02:14:16,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-21 02:14:16,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 837. [2023-12-21 02:14:16,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 684 states have (on average 1.0804093567251463) internal successors, (739), 689 states have internal predecessors, (739), 110 states have call successors, (110), 42 states have call predecessors, (110), 42 states have return successors, (110), 105 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-21 02:14:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 959 transitions. [2023-12-21 02:14:16,287 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 959 transitions. Word has length 128 [2023-12-21 02:14:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:14:16,287 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 959 transitions. [2023-12-21 02:14:16,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 30 states have internal predecessors, (106), 10 states have call successors, (30), 5 states have call predecessors, (30), 9 states have return successors, (30), 8 states have call predecessors, (30), 10 states have call successors, (30) [2023-12-21 02:14:16,288 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 959 transitions. [2023-12-21 02:14:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:14:16,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:14:16,289 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:14:16,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-12-21 02:14:16,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:14:16,499 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:14:16,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:14:16,499 INFO L85 PathProgramCache]: Analyzing trace with hash -330814216, now seen corresponding path program 1 times [2023-12-21 02:14:16,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:14:16,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425595148] [2023-12-21 02:14:16,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:14:16,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:14:16,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:14:16,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126644719] [2023-12-21 02:14:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:14:16,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:14:16,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:14:16,518 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:14:16,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-12-21 02:14:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:14:16,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 93 conjunts are in the unsatisfiable core [2023-12-21 02:14:16,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:14:16,952 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 [2023-12-21 02:14:17,240 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 [2023-12-21 02:14:19,147 INFO L349 Elim1Store]: treesize reduction 31, result has 32.6 percent of original size [2023-12-21 02:14:19,147 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 1 case distinctions, treesize of input 35 treesize of output 42 [2023-12-21 02:14:19,349 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 64 treesize of output 44 [2023-12-21 02:14:19,355 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 [2023-12-21 02:14:19,434 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 45 treesize of output 29 [2023-12-21 02:14:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 14 proven. 185 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-12-21 02:14:19,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:14:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:14:20,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:14:20,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425595148] [2023-12-21 02:14:20,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:14:20,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126644719] [2023-12-21 02:14:20,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126644719] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:14:20,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:14:20,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [28] total 39 [2023-12-21 02:14:20,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591161839] [2023-12-21 02:14:20,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:14:20,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:14:20,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:14:20,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:14:20,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1368, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 02:14:20,284 INFO L87 Difference]: Start difference. First operand 837 states and 959 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:14:21,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:14:21,001 INFO L93 Difference]: Finished difference Result 1655 states and 1895 transitions. [2023-12-21 02:14:21,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 02:14:21,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:14:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:14:21,002 INFO L225 Difference]: With dead ends: 1655 [2023-12-21 02:14:21,002 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 02:14:21,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=197, Invalid=2059, Unknown=0, NotChecked=0, Total=2256 [2023-12-21 02:14:21,006 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 90 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:14:21,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1210 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:14:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 02:14:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 02:14:21,007 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) [2023-12-21 02:14:21,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 02:14:21,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 128 [2023-12-21 02:14:21,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:14:21,007 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 02:14:21,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:14:21,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 02:14:21,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 02:14:21,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:14:21,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-12-21 02:14:21,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-12-21 02:14:21,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 02:22:48,704 WARN L293 SmtUtils]: Spent 8.44m on a formula simplification. DAG size of input: 291 DAG size of output: 344 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-21 02:23:03,702 WARN L293 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 344 DAG size of output: 138 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 02:23:11,221 WARN L293 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 613 DAG size of output: 1 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 02:23:11,286 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-21 02:23:11,286 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-21 02:23:11,286 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-21 02:23:11,286 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-21 02:23:11,286 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-21 02:23:11,286 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-21 02:23:11,286 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-21 02:23:11,286 INFO L899 garLoopResultBuilder]: For program point L102(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,286 INFO L899 garLoopResultBuilder]: For program point L102-1(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-3(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-5(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-7(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-8(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-9(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-10(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-11(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-13(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-14(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (and (= ~var_1_11_Pointer~0.offset 0) (<= .cse0 254) (= |~#var_1_3~0.offset| 0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0) (<= (+ .cse0 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse0)) 4294967296)))) [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-16(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L86-1(line 86) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-17(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,287 INFO L899 garLoopResultBuilder]: For program point L102-19(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-21(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-23(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-24(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-26(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-28(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-30(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-31(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-32(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-34(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-36(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-37(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L102-39(line 102) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (and (= ~var_1_11_Pointer~0.offset 0) (<= .cse0 254) (= |~#var_1_3~0.offset| 0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0) (<= (+ .cse0 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse0)) 4294967296)))) [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-12-21 02:23:11,288 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 62) no Hoare annotation was computed. [2023-12-21 02:23:11,289 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-12-21 02:23:11,289 INFO L899 garLoopResultBuilder]: For program point L55-2(line 55) no Hoare annotation was computed. [2023-12-21 02:23:11,289 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (let ((.cse0 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (and (= ~var_1_11_Pointer~0.offset 0) (<= .cse0 254) (= |~#var_1_3~0.offset| 0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0) (<= (+ .cse0 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse0)) 4294967296)))) [2023-12-21 02:23:11,289 INFO L899 garLoopResultBuilder]: For program point L89-1(line 89) no Hoare annotation was computed. [2023-12-21 02:23:11,289 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (and (= ~var_1_11_Pointer~0.offset 0) (<= .cse0 254) (= |~#var_1_3~0.offset| 0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0) (<= (+ .cse0 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse0)) 4294967296)))) [2023-12-21 02:23:11,289 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-12-21 02:23:11,289 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2023-12-21 02:23:11,289 INFO L899 garLoopResultBuilder]: For program point L57-2(lines 54 62) no Hoare annotation was computed. [2023-12-21 02:23:11,289 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 02:23:11,289 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (let ((.cse0 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (and (= ~var_1_11_Pointer~0.offset 0) (<= .cse0 254) (= |~#var_1_3~0.offset| 0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0) (<= (+ .cse0 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse0)) 4294967296)))) [2023-12-21 02:23:11,289 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-12-21 02:23:11,290 INFO L895 garLoopResultBuilder]: At program point L108-2(lines 108 114) the Hoare annotation is: (let ((.cse28 (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0))) (let ((.cse27 (mod (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) 256)) (.cse24 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (.cse6 (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256)) (.cse25 (mod (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) 4294967296)) (.cse26 (mod .cse28 256)) (.cse5 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256)) (.cse7 (mod (select (select |#memory_int#5| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256))) (let ((.cse4 (= .cse7 (mod (select (select |#memory_int#11| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (.cse3 (<= 2147483647 (mod (select (select |#memory_int#10| |~#var_1_11~0.base|) 0) 4294967296))) (.cse0 (= ~var_1_11_Pointer~0.offset 0)) (.cse1 (<= .cse5 254)) (.cse2 (= |~#var_1_3~0.offset| 0)) (.cse8 (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|)) (.cse9 (<= .cse26 127)) (.cse10 (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|)) (.cse11 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse12 (= |~#var_1_4~0.offset| 0)) (.cse13 (<= .cse25 4294967294)) (.cse14 (= ~var_1_3_Pointer~0.offset 0)) (.cse23 (= (mod (+ .cse28 253) 256) .cse6)) (.cse18 (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) .cse26)) (.cse16 (mod (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset) 4294967296)) (.cse20 (mod (div (+ .cse26 .cse27) .cse24) 4294967296)) (.cse21 (<= (+ .cse7 2 .cse26) .cse27)) (.cse22 (<= (+ .cse5 4) .cse26)) (.cse15 (= |~#var_1_11~0.offset| 0)) (.cse17 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (and .cse4 (= .cse5 .cse6)) (and .cse4 (= .cse7 .cse6))) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= 4294967041 .cse16) .cse17) (and .cse4 .cse0 .cse1 .cse2 .cse3 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (let ((.cse19 (<= .cse16 4294967040))) (or (and .cse18 .cse19) (and (<= (+ .cse16 1) .cse20) .cse19) (and .cse21 .cse22 .cse19) (and .cse23 .cse19))) .cse17) (and (not (= (mod (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) .cse0 .cse1 .cse2 (<= .cse16 .cse5) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= (+ 1 .cse24) .cse5) (<= 2147483647 .cse25) (or .cse23 .cse18 (< .cse16 .cse20) (and .cse21 .cse22)) .cse15 .cse17))))) [2023-12-21 02:23:11,290 INFO L899 garLoopResultBuilder]: For program point L108-3(lines 108 114) no Hoare annotation was computed. [2023-12-21 02:23:11,290 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (let ((.cse0 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (and (= ~var_1_11_Pointer~0.offset 0) (<= .cse0 254) (= |~#var_1_3~0.offset| 0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0) (<= (+ .cse0 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse0)) 4294967296)))) [2023-12-21 02:23:11,290 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-12-21 02:23:11,290 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse20 (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0))) (let ((.cse12 (mod (select (select |#memory_int#5| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256)) (.cse14 (mod (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) 256)) (.cse13 (mod .cse20 256))) (let ((.cse17 (= (mod (+ .cse20 253) 256) (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256))) (.cse18 (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) .cse13)) (.cse16 (mod (div (+ .cse13 .cse14) (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) 4294967296)) (.cse0 (= .cse12 (mod (select (select |#memory_int#11| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (.cse1 (= ~var_1_11_Pointer~0.offset 0)) (.cse2 (= |~#var_1_3~0.offset| 0)) (.cse3 (<= 2147483647 (mod (select (select |#memory_int#10| |~#var_1_11~0.base|) 0) 4294967296))) (.cse4 (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|)) (.cse5 (<= .cse13 127)) (.cse6 (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|)) (.cse7 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse8 (= |~#var_1_4~0.offset| 0)) (.cse9 (<= (mod (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) 4294967296) 4294967294)) (.cse10 (= ~var_1_3_Pointer~0.offset 0)) (.cse11 (= |~#var_1_11~0.offset| 0)) (.cse15 (mod (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset) 4294967296)) (.cse19 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (or (<= (+ .cse12 2 .cse13) .cse14) (<= (+ .cse15 1) .cse16) .cse17 .cse18) .cse19) (and (not (= (mod (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (or .cse17 .cse18 (< .cse15 .cse16) (< (+ .cse12 .cse13 1) .cse14)) .cse8 .cse9 .cse10 .cse11 (<= .cse15 255) .cse19) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= 4294967041 .cse15) .cse19))))) [2023-12-21 02:23:11,290 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2023-12-21 02:23:11,291 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (let ((.cse0 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (and (= ~var_1_11_Pointer~0.offset 0) (<= .cse0 254) (= |~#var_1_3~0.offset| 0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0) (<= (+ .cse0 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse0)) 4294967296)))) [2023-12-21 02:23:11,291 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-12-21 02:23:11,291 INFO L895 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: (let ((.cse16 (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0))) (let ((.cse15 (mod (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset) 4294967296)) (.cse17 (mod .cse16 256)) (.cse19 (mod (select (select |#memory_int#5| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256))) (let ((.cse0 (= .cse19 (mod (select (select |#memory_int#11| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (.cse1 (= ~var_1_11_Pointer~0.offset 0)) (.cse2 (= |~#var_1_3~0.offset| 0)) (.cse3 (<= 2147483647 (mod (select (select |#memory_int#10| |~#var_1_11~0.base|) 0) 4294967296))) (.cse4 (= |ULTIMATE.start_updateVariables_#t~mem48#1| (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0))) (.cse5 (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|)) (.cse6 (<= .cse17 127)) (.cse7 (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|)) (.cse8 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse9 (let ((.cse18 (mod (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) 256))) (or (= (mod (+ .cse16 253) 256) (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 256)) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) .cse17) (< .cse15 (mod (div (+ .cse17 .cse18) (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) 4294967296)) (< (+ .cse19 .cse17 1) .cse18)))) (.cse10 (= |~#var_1_4~0.offset| 0)) (.cse11 (<= (mod (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) 4294967296) 4294967294)) (.cse12 (= ~var_1_3_Pointer~0.offset 0)) (.cse13 (= |~#var_1_11~0.offset| 0)) (.cse14 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 (<= 4294967041 .cse15) .cse14) (and (not (= (mod (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= .cse15 255) .cse14))))) [2023-12-21 02:23:11,291 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2023-12-21 02:23:11,291 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 74) no Hoare annotation was computed. [2023-12-21 02:23:11,291 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 02:23:11,291 INFO L895 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: (and (= ~var_1_11_Pointer~0.offset 0) (= |ULTIMATE.start_updateVariables_#t~mem66#1| (select (select |#memory_int#10| |~#var_1_11~0.base|) 0)) (<= (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256) 254) (= |~#var_1_3~0.offset| 0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0)) [2023-12-21 02:23:11,291 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-21 02:23:11,291 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (let ((.cse11 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (let ((.cse0 (= ~var_1_11_Pointer~0.offset 0)) (.cse1 (<= .cse11 254)) (.cse2 (= |~#var_1_3~0.offset| 0)) (.cse3 (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|)) (.cse4 (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|)) (.cse5 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_3_Pointer~0.offset 0)) (.cse8 (= |~#var_1_11~0.offset| 0)) (.cse9 (= ~var_1_4_Pointer~0.offset 0)) (.cse10 (<= (+ .cse11 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse11)) 4294967296)))) (or (and (= (mod (select (select |#memory_int#5| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256) (mod (select (select |#memory_int#11| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and (not (= (mod (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset) 4294967296) 255) .cse9 .cse10)))) [2023-12-21 02:23:11,292 INFO L899 garLoopResultBuilder]: For program point L80-1(line 80) no Hoare annotation was computed. [2023-12-21 02:23:11,292 INFO L895 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0))) (and (= ~var_1_11_Pointer~0.offset 0) (<= (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256) 254) (= |~#var_1_3~0.offset| 0) (= |ULTIMATE.start_updateVariables_#t~mem67#1| .cse0) (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|) (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127) (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_3_Pointer~0.offset 0) (<= 2147483647 (mod .cse0 4294967296)) (= |~#var_1_11~0.offset| 0) (= ~var_1_4_Pointer~0.offset 0))) [2023-12-21 02:23:11,292 INFO L899 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2023-12-21 02:23:11,292 INFO L895 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: (let ((.cse12 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (let ((.cse0 (= ~var_1_11_Pointer~0.offset 0)) (.cse1 (<= .cse12 254)) (.cse2 (= |~#var_1_3~0.offset| 0)) (.cse3 (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|)) (.cse4 (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|)) (.cse5 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_3_Pointer~0.offset 0)) (.cse8 (= |ULTIMATE.start_updateVariables_#t~mem51#1| (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0))) (.cse9 (= |~#var_1_11~0.offset| 0)) (.cse10 (= ~var_1_4_Pointer~0.offset 0)) (.cse11 (<= (+ .cse12 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse12)) 4294967296)))) (or (and (= (mod (select (select |#memory_int#5| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256) (mod (select (select |#memory_int#11| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and (not (= (mod (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= (mod (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset) 4294967296) 255) .cse10 .cse11)))) [2023-12-21 02:23:11,292 INFO L899 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2023-12-21 02:23:11,292 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 50) no Hoare annotation was computed. [2023-12-21 02:23:11,292 INFO L899 garLoopResultBuilder]: For program point L48-2(lines 48 50) no Hoare annotation was computed. [2023-12-21 02:23:11,292 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 73) no Hoare annotation was computed. [2023-12-21 02:23:11,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-21 02:23:11,292 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (let ((.cse12 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (let ((.cse0 (= ~var_1_11_Pointer~0.offset 0)) (.cse1 (<= .cse12 254)) (.cse2 (= |~#var_1_3~0.offset| 0)) (.cse3 (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|)) (.cse4 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127)) (.cse5 (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|)) (.cse6 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse7 (= |~#var_1_4~0.offset| 0)) (.cse8 (= ~var_1_3_Pointer~0.offset 0)) (.cse9 (= |~#var_1_11~0.offset| 0)) (.cse10 (= ~var_1_4_Pointer~0.offset 0)) (.cse11 (<= (+ .cse12 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse12)) 4294967296)))) (or (and (= (mod (select (select |#memory_int#5| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256) (mod (select (select |#memory_int#11| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and (not (= (mod (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= (mod (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset) 4294967296) 255) .cse10 .cse11)))) [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L83-1(line 83) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L67-2(line 67) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L67-3(line 67) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L67-5(line 67) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L67-7(line 67) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L67-9(line 67) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L67-10(line 67) no Hoare annotation was computed. [2023-12-21 02:23:11,293 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (let ((.cse12 (mod (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) 0) 256))) (let ((.cse0 (= ~var_1_11_Pointer~0.offset 0)) (.cse1 (<= .cse12 254)) (.cse2 (= |~#var_1_3~0.offset| 0)) (.cse3 (= ~var_1_11_Pointer~0.base |~#var_1_11~0.base|)) (.cse4 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 256) 127)) (.cse5 (= ~var_1_3_Pointer~0.base |~#var_1_3~0.base|)) (.cse6 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse7 (= |~#var_1_4~0.offset| 0)) (.cse8 (= ~var_1_3_Pointer~0.offset 0)) (.cse9 (= |~#var_1_11~0.offset| 0)) (.cse10 (= ~var_1_4_Pointer~0.offset 0)) (.cse11 (<= (+ .cse12 1) (mod (+ (select (select |#memory_int#10| ~var_1_11_Pointer~0.base) 0) (* 4294967295 .cse12)) 4294967296)))) (or (and (= (mod (select (select |#memory_int#5| ~var_1_6_Pointer~0.base) ~var_1_6_Pointer~0.offset) 256) (mod (select (select |#memory_int#11| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and (not (= (mod (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= (mod (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset) 4294967296) 255) .cse10 .cse11)))) [2023-12-21 02:23:11,293 INFO L899 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2023-12-21 02:23:11,296 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, 1, 1, 1, 1] [2023-12-21 02:23:11,298 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 02:23:11,312 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,313 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~#var_1_11~0!base][0] could not be translated [2023-12-21 02:23:11,313 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,313 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,313 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,313 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 [2023-12-21 02:23:11,313 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,313 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,314 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,314 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 [2023-12-21 02:23:11,314 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,315 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_11_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,315 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,315 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,315 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,315 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,315 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~#var_1_11~0!base][0] could not be translated [2023-12-21 02:23:11,315 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,316 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_11_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,316 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_7_Pointer~0!base][~var_1_7_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,316 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,316 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,316 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,316 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,316 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,317 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,317 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 [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_11_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,318 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,319 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_11_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,319 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,319 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 [2023-12-21 02:23:11,319 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_7_Pointer~0!base][~var_1_7_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,319 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,319 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,319 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,319 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,319 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,320 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,320 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,320 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-21 02:23:11,320 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,320 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:23:11,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 02:23:11 BoogieIcfgContainer [2023-12-21 02:23:11,321 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 02:23:11,321 INFO L158 Benchmark]: Toolchain (without parser) took 583527.40ms. Allocated memory was 201.3MB in the beginning and 629.1MB in the end (delta: 427.8MB). Free memory was 136.1MB in the beginning and 319.5MB in the end (delta: -183.4MB). Peak memory consumption was 365.4MB. Max. memory is 8.0GB. [2023-12-21 02:23:11,321 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:23:11,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.97ms. Allocated memory is still 201.3MB. Free memory was 136.1MB in the beginning and 121.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-21 02:23:11,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.08ms. Allocated memory is still 201.3MB. Free memory was 121.5MB in the beginning and 117.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:23:11,322 INFO L158 Benchmark]: Boogie Preprocessor took 99.41ms. Allocated memory is still 201.3MB. Free memory was 117.7MB in the beginning and 112.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 02:23:11,322 INFO L158 Benchmark]: RCFGBuilder took 692.79ms. Allocated memory was 201.3MB in the beginning and 289.4MB in the end (delta: 88.1MB). Free memory was 112.5MB in the beginning and 250.5MB in the end (delta: -138.0MB). Peak memory consumption was 44.2MB. Max. memory is 8.0GB. [2023-12-21 02:23:11,322 INFO L158 Benchmark]: TraceAbstraction took 582391.77ms. Allocated memory was 289.4MB in the beginning and 629.1MB in the end (delta: 339.7MB). Free memory was 249.6MB in the beginning and 319.5MB in the end (delta: -69.9MB). Peak memory consumption was 389.4MB. Max. memory is 8.0GB. [2023-12-21 02:23:11,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 259.97ms. Allocated memory is still 201.3MB. Free memory was 136.1MB in the beginning and 121.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 77.08ms. Allocated memory is still 201.3MB. Free memory was 121.5MB in the beginning and 117.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 99.41ms. Allocated memory is still 201.3MB. Free memory was 117.7MB in the beginning and 112.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 692.79ms. Allocated memory was 201.3MB in the beginning and 289.4MB in the end (delta: 88.1MB). Free memory was 112.5MB in the beginning and 250.5MB in the end (delta: -138.0MB). Peak memory consumption was 44.2MB. Max. memory is 8.0GB. * TraceAbstraction took 582391.77ms. Allocated memory was 289.4MB in the beginning and 629.1MB in the end (delta: 339.7MB). Free memory was 249.6MB in the beginning and 319.5MB in the end (delta: -69.9MB). Peak memory consumption was 389.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~#var_1_11~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_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#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~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#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_11_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~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_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~#var_1_11~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_11_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_7_Pointer~0!base][~var_1_7_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~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_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_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#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_11_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_11_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_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#6[~var_1_7_Pointer~0!base][~var_1_7_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_6_Pointer~0!base][~var_1_6_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_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, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 582.3s, OverallIterations: 33, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 530.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4563 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4563 mSDsluCounter, 17506 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13465 mSDsCounter, 284 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6366 IncrementalHoareTripleChecker+Invalid, 6650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 284 mSolverCounterUnsat, 4041 mSDtfsCounter, 6366 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5361 GetRequests, 4948 SyntacticMatches, 1 SemanticMatches, 412 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2898 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=837occurred in iteration=32, InterpolantAutomatonStates: 306, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 33 MinimizatonAttempts, 1747 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 1513 PreInvPairs, 1633 NumberOfFragments, 2713 HoareAnnotationTreeSize, 1513 FormulaSimplifications, 35684898 FormulaSimplificationTreeSizeReduction, 513.7s HoareSimplificationTime, 17 FormulaSimplificationsInter, 1060289 FormulaSimplificationTreeSizeReductionInter, 16.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 11.7s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 4024 NumberOfCodeBlocks, 4024 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 5158 ConstructedInterpolants, 207 QuantifiedInterpolants, 24765 SizeOfPredicates, 427 NumberOfNonLiveVariables, 15962 ConjunctsInSsa, 672 ConjunctsInUnsatCore, 44 InterpolantComputations, 31 PerfectInterpolantSequences, 17522/18480 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: 108]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-21 02:23:11,461 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...